KR20210011306A - Display apparatus and vehicle comprising the same - Google Patents

Abstract

The present specification provides a display device and a vehicle including the same. The display device includes: a display panel configured to display an image; a front member disposed on a front surface of the display panel; a driving circuit disposed on a rear surface of the display panel and connected to the display panel; a support frame configured to surround a side surface of the display panel and a side surface of the driving circuit; a first support member supported by the support frame and disposed on the rear surface of the display panel; and a vibration generating module supported by the first support member to vibrate the display panel, thereby outputting sound to the front of the display panel.

Description

Display device and vehicle including same {DISPLAY APPARATUS AND VEHICLE COMPRISING THE SAME}

The present specification relates to a display device and a vehicle including the same.

Display devices are mounted on electronic products or home appliances such as televisions, monitors, notebook computers, smart phones, tablet computers, electronic pads, wearable devices, watch phones, portable information devices, navigation devices, or vehicle control display devices to display images. It is used as a screen.

A typical display device may include a display panel that displays an image, and an audio device that outputs sound related to an image. However, in general display devices, since sound output from the sound device proceeds to the rear or lower side of the display panel, sound quality is degraded due to interference between sound reflected from surrounding structures such as walls or the ground, and thus accurate sound transmission is difficult. In addition, there is a problem that the viewer's sense of immersion is deteriorated.

The inventors of the present specification recognize problems with a general display device, and when viewing an image in front of the display panel, the direction of sound may be in the front of the display panel, and various experiments to improve sound quality have been conducted. Through several experiments, a display device having a new structure capable of generating sound that can proceed to the front of the display panel and improving sound quality has been invented.

A problem to be solved according to an exemplary embodiment of the present specification is to provide a display device capable of outputting sound to the front of a display panel, and a vehicle including the same.

A problem to be solved according to an exemplary embodiment of the present specification is to provide a display device capable of improving sound quality and increasing a viewer's or listener's immersion, and a vehicle including the same.

A problem to be solved according to an exemplary embodiment of the present specification is to provide a display device capable of preventing or minimizing damage to a driving circuit part due to vibration of a display panel, and a vehicle including the same.

In addition to the problems to be solved in the present specification mentioned above, other features and advantages are described below, or from such technology and description, it will be clearly understood by those of ordinary skill in the art to which the present invention belongs. .

A display device according to an exemplary embodiment of the present specification includes a display panel displaying an image, a front member disposed on the front side of the display panel, a driving circuit unit disposed on the rear side of the display panel and connected to the display panel, side surfaces of the display panel and a driving circuit unit It may include a support frame surrounding the side of the display, a first support member supported by the support frame and disposed on the rear surface of the display panel, and a vibration generating module supported by the first support member and vibrating the display panel.

A display device according to an exemplary embodiment of the present specification includes a display panel displaying an image, a front member disposed on the front side of the display panel, a first supporting member disposed on the rear side of the display panel, and supported by the first supporting member and supporting the display panel. It may include a vibration generating module for vibrating, and a printed circuit board disposed between the rear surface of the display panel and the first support member.

A vehicle according to an embodiment of the present specification includes a dashboard having a first area facing a driver's seat, a second area facing a passenger seat, and a third area between the first area and the second area; An instrument panel module having a first display disposed in a first area of the dashboard; And at least one of a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed at the rear of the driver's seat, and a fifth display disposed at the rear of the passenger seat. Including an infotainment module having, and any one of the first to fifth displays includes a display device, and the display device includes a display panel displaying an image, a front member disposed in front of the display panel, and disposed at the rear of the display panel A driving circuit unit connected to the display panel, a support frame surrounding the side surfaces of the display panel and the side surfaces of the driving circuit unit, a first support member supported by the support frame and disposed on the rear side of the display panel, and a display supported by the first support member It may include a vibration generating module for vibrating the panel.

A vehicle according to an embodiment of the present specification includes a dashboard having a first area facing a driver's seat, a second area facing a passenger seat, and a third area between the first area and the second area; An instrument panel module having a first display disposed in a first area of the dashboard; And at least one of a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed at the rear of the driver's seat, and a fifth display disposed at the rear of the passenger seat. Including an infotainment module having, and any one of the first to fifth displays includes a display device, and the display device includes a display panel displaying an image, a front member disposed in front of the display panel, and disposed at the rear of the display panel And a first supporting member, a vibration generating module supported by the first supporting member and vibrating the display panel, and a printed circuit board disposed between the rear surface of the display panel and the first supporting member.

The display device according to the exemplary embodiment of the present specification and a vehicle including the same may output sound to the front of the display panel, and may output sound with improved sound quality, sound performance, and sound pressure characteristics. It can increase the sense of immersion.

In addition, in the display device and the vehicle including the same according to the exemplary embodiment of the present specification, damage to the driving circuit unit due to vibration of the display panel may be prevented or minimized, thereby improving reliability of the driving circuit unit.

In the display device and the vehicle including the same according to the exemplary embodiment of the present specification, a sound pressure, sound quality, and a reproduction band of sound generated by vibration of the display panel may be increased.

In addition to the effects of the present specification mentioned above, other features and advantages of the present specification are described below, or from such technology and description, it will be clearly understood by those of ordinary skill in the art to which the present invention belongs. .

1 is a diagram illustrating a display device according to an exemplary embodiment of the present specification.
FIG. 2 is a diagram illustrating a rear surface of the display device illustrated in FIG. 1.
3 is an exploded perspective view of the display device shown in FIGS. 1 and 2.
FIG. 4 is a cross-sectional view of a line II′ shown in FIG. 2.
5 is a cross-sectional view of a line II-II' shown in FIG. 2.
6 is an enlarged view of a portion'A' shown in FIG. 4.
7 is another enlarged view of a portion'A' shown in FIG. 4.
FIG. 8 is another enlarged view of part'A' shown in FIG. 4.
9 is another enlarged view of portion'A' shown in FIG. 4.
10 is an exploded perspective view illustrating a display device according to another exemplary embodiment of the present specification.
FIG. 11 is a diagram illustrating a support frame, a driving circuit unit, and a holder disposed on a rear surface of the display panel shown in FIG. 10.
12 is a cross-sectional view of a line III-III' shown in FIG. 11.
13 is a diagram illustrating a display device according to another exemplary embodiment of the present specification.
14 is a cross-sectional view of a line IV-IV' shown in FIG. 13.
15 is a diagram illustrating a display device according to another exemplary embodiment of the present specification.
16 is a cross-sectional view of the line V-V' shown in FIG. 15.
17 is a view showing a vehicle according to an embodiment of the present specification.
18 is a view showing a vehicle according to another embodiment of the present specification.
19 is a view showing a vehicle according to another embodiment of the present specification.
20 is a view showing a vehicle according to another embodiment of the present specification.
21 is a view showing a vehicle according to another embodiment of the present specification.
22 is a graph measuring sound pressure characteristics of a display device according to an exemplary embodiment of the present specification.

Advantages and features of the present specification, and a method of achieving them will become apparent with reference to examples to be described later in detail together with the accompanying drawings. However, the present specification is not limited to the examples disclosed below, but will be implemented in a variety of different forms, and only one example of the present specification makes the disclosure of the present specification complete, and in the technical field to which the invention of the present specification belongs. It is provided to completely inform the scope of the invention to those skilled in the art, and the invention of the present specification is only defined by the scope of the claims.

The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining an example of the present specification are exemplary, and the present specification is not limited to the illustrated matter. The same reference numerals refer to the same components throughout the specification. In addition, in describing examples of the present specification, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present specification, the detailed description thereof will be omitted.

When'include','have','consists of' and the like mentioned in the present specification are used, other parts may be added unless'only' is used. In the case of expressing the constituent elements in the singular, it includes the case of including the plural unless specifically stated otherwise.

In interpreting the constituent elements, it is interpreted as including an error range even if there is no explicit description.

In the case of a description of the positional relationship, for example, if the positional relationship of two parts is described as'upper','upper of','lower of','next to','right' Or, unless'direct' is used, one or more other parts may be located between the two parts.

In the case of a description of a temporal relationship, for example, when a temporal predecessor relationship is described as'after','following','after','before', etc.,'right' or'direct' It may also include cases that are not continuous unless this is used.

First, second, etc. are used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one component from another component. Accordingly, the first component mentioned below may be a second component within the technical idea of the present specification.

The term “at least one” is to be understood as including all possible combinations from one or more related items. For example, the meaning of “at least one of the first item, the second item, and the third item” means 2 among the first item, the second item, and the third item as well as each of the first item, the second item, or the third item. It may mean a combination of all items that can be presented from more than one.

Each of the features of the various examples in the present specification can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each of the examples can be implemented independently of each other or can be implemented together in an association relationship. .

Hereinafter, an example of a display device and a vehicle including the same according to an example of the present specification will be described in detail with reference to the accompanying drawings. In adding reference numerals to elements of each drawing, the same elements may have the same numerals as possible even if they are indicated on different drawings. Further, the scales of the components shown in the accompanying drawings are not limited to the scales shown in the drawings, since they have different scales from the actual ones for convenience of description.

When the driving circuit unit of the display device is directly disposed on the rear side of the display panel, it has been recognized that there is a problem in that a desired sound cannot be transmitted by the driving circuit unit when the vibration of the vibration generating module is transmitted to the display panel. In addition, when the vibration generating module is applied to a vehicle display device having a relatively small size, it has been recognized that there is a problem in that the driving circuit unit is damaged by the vibration of the vibration generating module. Accordingly, the inventors of the present specification conducted several experiments to reduce damage to the driving circuit part by the vibration generating module through several experiments. A display with a new structure that can prevent damage to the driving circuit part by the vibration generating module through various experiments, reduce the vibration caused by the driving circuit part by reducing the contact between the driving circuit part and the display panel, and improve the sound of the vibration generating module. The device was invented. This will be described below.

1 is a diagram illustrating a display device according to an exemplary embodiment of the present specification.

Referring to FIG. 1, the display device according to an exemplary embodiment of the present specification may output sound DVS (or display vibration sound) according to vibration of the display panel 200 for displaying an image. Accordingly, the display device according to the exemplary embodiment of the present specification uses the display panel 200 as a diaphragm for generating sound and outputs sound DVS to the front of the screen FD of the display panel 200. Can be output, through which accurate sound transmission is possible, sound quality can be improved, and a sense of immersion of the viewer or listener can be increased.

FIG. 2 is a view showing the rear surface of the display device shown in FIG. 1, FIG. 3 is an exploded perspective view of the display device shown in FIGS. 1 and 2, and FIG. 4 is a cross-sectional view taken along line II' shown in FIG. 5 is a cross-sectional view taken along the line II-II' shown in FIG. 2.

2 to 5, the display device according to an exemplary embodiment of the present specification includes a front member 100, a display panel 200, a driving circuit unit 300, a second support member 400, and a support frame 500. ), a first support member 600, and a vibration generating module 700.

The front member 100 constitutes the frontmost structure of the display device and may serve to protect the screen of the display panel 200. The front member 100 may be disposed on the front side of the display panel 200. For example, the front member 100 may protect the display panel 200 from external shocks by covering the front surface of the display panel 200. Further, the front member 100 may generate sound DVS by vibrating together with the vibration of the display panel 200.

The front member 100 according to an embodiment may be made of a transparent plastic material, a glass material, or a reinforced glass material. As an example, the front member 100 may have any one of Sapphire Glass and Gorilla Glass, or a laminated structure thereof. As another example, the front member 100 may include a transparent plastic material such as polyethyleneterephthalate (PET). The front member 100 may be made of reinforced glass in consideration of scratches and transparency. For example, the front member 10 may be a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, or a window glass, but is not limited to terms.

Referring to FIG. 3, the front member 100 covers the non-display area except for the display area of the display panel 200. The front member 100 according to an exemplary embodiment may include a transparent area 110 overlapping a display area of the display panel 200 and a light blocking area 130 overlapping a non-display area of the display panel 200. . The light blocking area 130 may cover a non-display area of the display panel 200 as well as a non-display area in which an image is not displayed on the display device.

The front member 100 according to an exemplary embodiment may have a rectangular shape, a polygonal shape including a square shape, or a non-polygonal shape including at least one side having a curved shape.

The display panel 200 is disposed on the rear surface (or rear surface) of the front member 100 and may display an image. The display panel 200 may serve as a touch sensor that senses a user's touch to the front member 100. The display panel 200 may output sound (DVS) according to the vibration of the vibration generating module 700 or generate haptic feedback (or haptic vibration) in response to a user's touch.

The display panel 200 may be disposed on the rear surface of the front member 100 through a bonding process using a panel bonding member (or a transparent adhesive member). The panel bonding member may include a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR), but is not limited thereto.

The display panel 200 may include a self-luminous display panel or a curved self-luminous display panel. For example, the display panel 200 may include a light emitting display panel, a micro light emitting diode display panel, a flexible light emitting display panel, or a flexible micro light emitting diode display panel, but is not limited thereto.

The display panel 200 according to an exemplary embodiment may have a rectangular shape, a polygonal shape including a square shape, or a non-polygonal shape including at least one side having a curved shape. The display panel 200 may have the same or different shape as the front member 100. As an example, the front member 100 may have a rectangular shape, and the display panel 200 may have a rectangular shape having a size smaller than that of the front member 100. As another example, the front member 100 may have a non-polygonal shape, and the display panel 200 may have a non-polygonal shape or a rectangular shape having a size smaller than that of the front member 100.

Referring to FIG. 4, the display panel 200 according to an exemplary embodiment includes a pixel array substrate 210 having a pixel array layer 213 formed of a plurality of pixels, and an encapsulation layer covering the pixel array layer 213. layer) 230 may be included.

The pixel array substrate 210 may include a base substrate 211 and a pixel array layer 213 disposed on the base substrate 211.

The base substrate 211 may include a plastic material or a glass material.

The pixel array layer 213 may include a pixel array including a plurality of pixels disposed in a display area defined on the base substrate 211.

Each of the plurality of pixels may be provided in a pixel region provided by pixel driving lines including a plurality of gate lines and a plurality of data lines. Each of the plurality of pixels according to the exemplary embodiment may include a pixel circuit including at least two thin film transistors and at least one capacitor, and a light emitting device layer emitting light by a current supplied from the pixel circuit.

The light emitting device layer disposed on each of the plurality of pixels may include a first electrode connected to a corresponding pixel circuit, a light emitting device disposed on the first electrode, and a second electrode disposed on the light emitting device. As an example, the light emitting device may include an organic emission layer or a quantum dot emission layer. As another example, the light emitting device may include a micro light emitting diode.

The light emitting device layer according to an example may have a top light emitting structure or a top light emitting structure in which light emitted from the light emitting device passes through the encapsulation layer 230 and is emitted toward the front member 100. For example, in a light emitting device layer having a top light emitting structure (or a top light emitting structure), the first electrode may be a reflective electrode, and the second electrode may be a transparent electrode. For example, the first electrode may include a light reflecting material, and the second electrode may include a light transmitting material.

The light emitting device layer according to another example may have a lower light emitting structure or a rear light emitting structure in which light emitted from the light emitting device passes through the pixel array substrate 210 and is emitted toward the front member 100. For example, in a light emitting device layer having a lower light emitting structure (or a bottom light emitting structure), the first electrode may be a transparent electrode, and the second electrode may be a reflective electrode. The first electrode may include a light transmitting material, and the second electrode may include a light reflective material. The present invention is not limited thereto, and the light emitting device layer may have a double-sided light emitting structure.

Referring to FIG. 4, the pixel array substrate 210 may further include a gate driving circuit 215 disposed in a non-display area of the base substrate 211.

The gate driving circuit 215 may be disposed in a non-display area of the base substrate 211 to be connected to the plurality of gate lines in a one-to-one manner. The gate driving circuit 215 may be disposed in at least one of a left non-display area and a right non-display area of the base substrate 211. For example, the gate driving circuit 215 may be implemented as a shift register including a plurality of transistors formed in a non-display area along with a process of forming a thin film transistor in a pixel area.

3 to 5, the encapsulation layer 230 is formed on the pixel array substrate 210 to surround the pixel array layer 213 to prevent oxygen and/or moisture from penetrating into the light emitting device of the pixel array layer. Can be prevented or blocked.

The encapsulation layer 230 according to an embodiment may be formed in a multilayer structure in which organic material layers and inorganic material layers are alternately stacked, but is not limited thereto. The inorganic material layer may prevent or block oxygen and/or moisture from penetrating into the light emitting device. In addition, the organic material layer may be formed to have a relatively thicker thickness than the inorganic material layer so as to cover particles that may occur during the manufacturing process, but is not limited thereto.

The display panel 200 according to an embodiment may further include a protective substrate disposed on the encapsulation layer 230. The protective substrate (or encapsulation substrate) may be disposed or coupled to the front surface of the encapsulation layer 230 via a filler or an adhesive. As an example, the protective substrate may be made of a transparent material when the light emitting device layer has a top light emitting structure. As another example, when the light emitting device layer has a lower light emitting structure, the protective substrate may be made of a transparent material, an opaque material, or a metal material. For example, when the light emitting device layer has a top light emitting structure, the protective substrate may be omitted.

The display panel 200 according to an embodiment may further include an optical film.

The optical film may be a polarizing film for improving visibility and contrast ratio of the display panel 200 by preventing or minimizing reflection of external light. The polarizing film may prevent or minimize reflection of external light by changing external light reflected by a thin film transistor and/or pixel driving lines provided on the pixel array substrate 210 into a circularly polarized state.

The optical film according to an embodiment may be disposed (or attached) on the upper surface of the encapsulation layer 230 through a transparent adhesive member when the light emitting device layer has a top light emitting structure. When the display panel 200 has an optical film, the protective substrate may be omitted.

The optical film according to another exemplary embodiment may be disposed (or attached) to the rear surface of the pixel array substrate 210 through a transparent adhesive member when the light emitting device layer has a lower light emitting structure.

The display panel 200 according to an embodiment may further include a touch electrode layer for sensing a user touch to the front member 100.

The touch electrode layer may include a plurality of touch electrodes for sensing a user touch. The plurality of touch electrodes may serve as a touch sensor for sensing a user touch according to a mutual capacitance method or a self capacitance method.

The touch electrode layer according to an embodiment may be implemented as a touch panel including a plurality of touch electrodes. For example, in the add-on type touch panel, when the light emitting device layer has an upper light emitting structure, the light emitting device layer may be disposed or combined on the encapsulation layer 230 or the optical film, and the light emitting device layer is When having a light emitting structure, it may be disposed or coupled to the rear surface of the pixel array substrate 210.

The touch electrode layer according to another embodiment may be directly formed on the encapsulation layer 230 according to an in-cell method. For example, the in-cell type touch electrode layer may be formed directly on the front surface of the encapsulation layer 230 when the light emitting device layer has a top light emitting structure.

The display panel 200 according to an exemplary embodiment may further include a color filter layer provided on the encapsulation layer 230 so as to overlap each of the plurality of pixels. Light-emitting elements disposed in each of the plurality of pixels may emit white light. As an example, the color filter layer may be disposed on the encapsulation layer 230 when the light emitting device layer has a top emission structure. As another example, the color filter layer may be disposed in the pixel array layer 213 when the light emitting device layer has a lower light emitting structure.

The display panel 200 according to an embodiment may further include a back plate 250.

The back plate 250 may be formed to have the same shape as the pixel array substrate 210. As an example, when the light emitting device layer has an upper light emitting structure, the back plate 250 may be disposed on the rear surface (or rear surface) of the pixel array substrate 210 via a transparent adhesive member. As another example, the back plate 250 may be a protective substrate when the light emitting device layer has a lower light emitting structure.

The back plate 250 may increase the rigidity of the display panel 200 and dissipate heat generated from the display panel 200. The back plate 250 according to an embodiment may include a metal material having high thermal conductivity. For example, the back plate 250 may be made of any one of aluminum, copper, silver, and magnesium, may include an alloy material thereof, or may include a stainless steel material. The back plate 250 may be expressed as a heat diffusion sheet, a heat diffusion layer, a heat diffusion plate, a heat sink, a heat radiation sheet, a heat radiation layer, or a heat radiation plate, but is not limited to terms.

2, 3, and 5, the driving circuit unit 300 is disposed on the rear surface of the display panel 200 and may be connected to the display panel 200. For example, the driving circuit unit 300 may be connected to the pad unit 217 provided on the first edge portion (or one edge portion) of the display panel 200. The driving circuit unit 300 may be implemented to display an image on a plurality of pixels disposed on the pixel array substrate 210 of the display panel 200. For example, the driving circuit unit 300 may display an image on the display area of the display panel 200. The driving circuit unit 300 may sense a user touch through a plurality of touch electrodes disposed on the touch electrode layer of the display panel 200.

The driving circuit unit 300 according to an embodiment may include at least one flexible circuit film 310, at least one data integrated circuit 320, and a printed circuit board 330. For example, the driving circuit unit 300 may include at least one flexible circuit film 310 and a plurality of data integrated circuits 320.

Each of the at least one flexible circuit film 310 may be connected to a plurality of pad portions 217 provided on a first edge portion (or one edge portion) of the pixel array substrate 210 of the display panel 200, respectively. The plurality of pad portions 217 may be disposed at regular intervals along the first direction X. Accordingly, each of the at least one flexible circuit film 310 may be disposed at regular intervals along the first direction X as each of the at least one flexible circuit film 310 is connected to each of the plurality of pad portions 217 having a predetermined interval. For example, one side of each of the at least one flexible circuit film 310 may be disposed (or connected) to the pad portion 217 provided on the display panel 200 through a film attaching process using an anisotropic conductive film.

Each of the at least one flexible circuit film 310 may wrap the rear surface of the support member 50. Each of the at least one flexible circuit film 310 may be bent (or folded) from the pad unit 217 toward the rear surface of the display panel 200. For example, the other side of each of the at least one flexible circuit film 310 may be disposed on a first rear edge portion (or first area) of the display panel 200. An intermediate portion (or bent portion) between one side and the other side of each of the at least one flexible circuit film 310 may be bent (or folded) to surround one side of the display panel 200.

Each of the plurality of data driving integrated circuits 320 may be respectively mounted on at least one flexible circuit film 310. Each of the plurality of data driving integrated circuits 320 may be mounted on the flexible circuit film 310 by a chip bonding process or a surface mounting process. Each of the plurality of data driving integrated circuits 320 converts digital pixel data into analog data signals and supplies them to corresponding pixels based on digital pixel data and data control signals supplied from the outside.

The printed circuit board 330 may be commonly connected to each of the at least one flexible circuit film 310. The printed circuit board 330 according to the embodiment is electrically connected to the other side of each of the at least one flexible circuit film 310 by a film attaching process via an anisotropic conductive film, and at least one flexible circuit film 310 ) It may be disposed on the first rear edge of the display panel 200 according to each bending. The first rear edge portion of the display panel 200 may be a region in which at least one flexible circuit film 310 and the printed circuit board 330 are disposed among the rear surfaces of the display panel 200. For example, the first rear edge portion of the display panel 200 may be expressed as a rear portion of the display panel 200. The printed circuit board 330 may be positioned between the rear surface of the display panel 200 and the first support member 600. The printed circuit board 330 according to the exemplary embodiment may be spaced apart from or floated from the rear surface of the display panel 200, so that the printed circuit board 330 may be directly non-contact with the rear surface of the display panel 200. For example, the rear surface of the printed circuit board 33 may be positioned in a non-contact state with the back plate 250 of the display panel 200.

For example, when the display device according to the exemplary embodiment of the present specification is applied to a vehicle display device having a size relatively smaller than that of a large-area television display device, a printed circuit board disposed on the rear surface of the display panel 200 ( The size of the display panel 330 may occupy approximately 20% to 30% of the size of the display panel 200, and the printed circuit board 330 is on the vibration area of the display panel 200 according to the vibration of the vibration generating module 700. Can be located or placed in. Accordingly. When the printed circuit board 330 is disposed to directly contact the rear surface of the display panel 200, as vibration of the display panel 200 for sound (DVS) is directly transmitted to the printed circuit board 330 A peeling phenomenon may occur between the printed circuit board 330 and the flexible circuit film 320 due to damage to the printed circuit board 330 or vibration or vibration of the printed circuit board 330. The data driving integrated circuit 320 may be damaged by vibration or vibration of the flexible circuit film 320 due to vibration or vibration. Accordingly, in the display device according to the exemplary embodiment of the present specification, the printed circuit board 330 is disposed between the rear surface of the display panel 200 and the first support member 600 so as not to directly contact the rear surface of the display panel 200. By doing so, it is possible to prevent or minimize the vibration of the display panel 200 from being transmitted to the printed circuit board 330, and thereby prevent or minimize damage to the printed circuit board 330 due to the vibration of the display panel 200. In addition, peeling between the flexible circuit film 310 and the printed circuit board 330 and damage to the data driving integrated circuit 320 may be prevented or minimized.

The driving circuit unit 300 according to an embodiment may further include a control board 340, a signal transmission member 350, a timing control circuit 360, and a user connector 370.

The control board 340 may be disposed on the rear surface of the first support member 600 and connected to the printed circuit board 330 through the signal transmission member 350. The control board 340 may be connected to a display host system (or a display driving system) through a user connector 370. The control board 340 provides the timing synchronization signal and image data supplied from the display host system to the timing control circuit 360, and prints digital pixel data output from the timing control circuit 360 with the signal transmission member 350. It may be provided to the data driving integrated circuit 320 through the circuit board 330 and the flexible circuit film 310.

The control board 340 may further include a voltage generation circuit that generates various driving voltages required for driving the display device.

The timing control circuit 360 is mounted on the control board 340 and receives a timing synchronization signal and image data supplied from the display host system through the user connector 370. For example, the timing synchronization signal may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, and a main clock signal.

The timing control circuit 360 includes a gate control signal for controlling driving timing of the gate driving circuit and a data control signal for controlling driving timing of each of the plurality of data driving integrated circuits 320, respectively, based on the timing synchronization signal. Can be created. For example, the gate control signal may include at least one gate start signal and a plurality of gate shift clocks. The data control signal may include a source start signal, a source shift clock, and a source output enable signal.

The timing control circuit 360 may not be mounted on the control board 340, but may be mounted on the front surface of the printed circuit board 330. Also, the voltage generating circuit may not be mounted on the control board 340 but may be mounted on the front surface of the printed circuit board 330. In this case, the control board 340 may be omitted.

The driving circuit unit 300 according to an embodiment may further include a touch driving circuit connected to the touch electrode layer of the display panel 200.

The touch driving circuit senses a user touch through each of the plurality of touch electrodes disposed on the touch electrode layer to generate touch raw data, and displays coordinate information of the user touch based on the generated touch row data. Can be provided.

The display host system may include a main board, various circuits mounted on the main board, various storage media, peripheral devices, keyboards, and power devices. Various circuits mounted on the main board include a central control circuit for processing various information, an image processing circuit that processes data under the control of the central control circuit, and an audio processing circuit that processes sound under the control of the central control circuit. can do. The display host system processes various types of information and generates timing synchronization signals and image data and provides them to the control board 340, and generates a driving signal including an acoustic signal or a haptic feedback signal and provides them to the control board 340. do. For example, the sound signal may be synchronized with the image data or may not be synchronized with the image data.

The display host system may execute an application program linked with touch coordinates corresponding to coordinate information of a user touch provided from a touch driving circuit or may perform a user interface based on a user's touch drawing. In addition, the display host system may generate a driving signal including a haptic feedback signal corresponding to coordinate information of a user touch provided from the touch driving circuit.

The second support member 400 may be disposed between the rear surface of the display panel 200 and the driving circuit unit 300. The second support member 400 may be disposed between the rear surface of the display panel 200 and the printed circuit board 330 of the driving circuit unit 300. The second support member 400 may support the printed circuit board 330 to separate the printed circuit board 330 from the rear surface of the display panel 200. For example, the printed circuit board 330 may be supported by the second support member 400 and may be disposed between the rear surface of the display panel 200 and the first support member 600.

The first surface (or front surface) of the second support member 400 is disposed on the rear surface of the display panel 200 and is opposite to the first surface (or front surface) of the second support member 400 (or The rear side) may be disposed on the rear side of the printed circuit board 330. For example, the first surface (or the front surface) of the second support member 400 may be disposed on the back plate 250 that is the rearmost surface of the display panel 200. Accordingly, the printed circuit board 330 may be supported by the second supporting member 400 and disposed on the rear surface of the display panel 200 via the second supporting member 400.

The second support member 400 according to an exemplary embodiment is made of a vibration absorbing material capable of blocking or minimizing the transmission of vibration of the display panel 200 to the printed circuit board 330 or an elastic material capable of being compressed to a certain degree. Can be configured. For example, the second support member 400 may include a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer), but is not limited thereto.

The second support member 400 according to another embodiment may include a conductive double-sided tape or a double-sided foam tape. In this case, the printed circuit board 330 may include a ground pattern (or ground pattern) exposed on the rear surface. For example, the second surface (or the rear surface) of the second support member 400 is electrically connected to the ground pattern (or ground pattern) exposed on the rear surface of the printed circuit board 330. The ground pattern (or ground pattern) exposed on the rear surface may be electrically connected to the back plate 250 of the display panel 200. Accordingly, the back plate 250 of the display panel 200 may serve not only a heat dissipation function of the display panel 200 but also a function of grounding the ground pattern (or ground pattern) of the printed circuit board 330.

The support frame 500 may be disposed on the rear surface of the front member 100. For example, the support frame 500 may surround the side surfaces of the display panel 200 or the side surfaces of the driving circuit unit 300. For example, the support frame 500 may surround side surfaces of the display panel 200 and side surfaces of the driving circuit unit 300. The support frame 500 may accommodate the driving circuit unit 300 of the display panel 200. The support frame 500 may have the same shape as the front member 100. The support frame 500 is disposed on the outermost side of the display device and is directly exposed to the outside of the display device. For example, the support frame 500 may be expressed as an outermost frame, an outermost mold, an outermost fixture, a guide frame, a guide panel, an edge frame, or a mold frame, and the term is not limited thereto.

The support frame 500 supports the first support member 600 and provides an air gap AG between the rear surface of the display panel 200 and the first support member 600 or a storage or accommodation space of the display panel 200. Can be prepared.

The support frame 500 may be disposed at a rear edge portion of the front member 100 via the first connection member (or first coupling member) 501.

The first connection member 501 may be interposed between the rear edge portion of the front member 100 and the support frame 500 to place the support frame 500 on the rear surface of the front member 100. The first connecting member 501 according to an embodiment may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad, but is not limited thereto. The adhesive resin and the adhesive layer of the first connection member 501 according to an exemplary embodiment may include an acrylic or urethane adhesive material, but are not limited thereto. For example, in order to prevent or minimize the vibration of the front member 100 due to the vibration of the display panel 200, the adhesive resin and the adhesive layer of the first connection member 501 are transmitted to the support frame 500. As a result, a urethane-based adhesive material having relatively soft properties may be included rather than an acrylic-based adhesive material having high hardness, but is not limited thereto.

The support frame 500 according to an example may include a frame portion 510 and a frame side portion 530.

The frame portion 510 may be disposed on the rear surface of the front member 100. For example, the frame unit 510 may include an opening 515 disposed at a rear edge of the front member 100 and overlapping the display panel 200. The frame portion 510 may be supported or disposed on a rear edge portion of the front member 100 via the first connection member 501. The frame unit 510 according to an exemplary embodiment may have the same shape as the front member 100, but is not limited thereto. For example, the frame part 510 may have the same polygonal shape or a non-polygonal shape as the shape of the front member 100.

The opening 515 of the frame part 510 may be defined by an inner side surface of the frame part 510. The opening 515 of the frame part 510 may accommodate or accommodate the display panel 200. The opening 515 of the frame unit 510 may have the same shape as the display panel 200 and may have a larger size than the display panel 200. For example, the opening 515 of the frame unit 510 may have the same polygonal shape or a non-polygonal shape as the shape of the display panel 200.

The frame side portion 530 may be disposed on the inner edge portion of the frame portion 510. For example, the frame side portion 530 may be vertically disposed or protruded from the inner edge portion of the frame portion 510. The frame side portion 530 may further form an opening 515. For example, the frame portion 510 and the frame side portion 530 may have a " ┐ ┌ " shaped cross-sectional structure. The frame side portion 530 may surround side surfaces of the display panel 200 and/or the driving circuit unit 300 of the display panel 200.

The support frame 500 according to an embodiment may further include a plurality of connection portions 550 formed at regular intervals on the outer wall of the frame side portion 530 as shown in FIG. 4. Each of the plurality of connection portions 550 is a structure for arranging (or connecting) the first support member 600 to the support frame 500 and may protrude from the outer wall of the frame side portion 530. For example, each of the plurality of connection parts 550 may include a hole. For example, the hole may be a screw hole, but is not limited thereto.

2 to 5, the first support member 600 may be disposed on the rear surface of the display panel 200. For example, the first support member 600 may be supported on an edge portion of the support frame 500 and may cover the rear surface of the display panel 200. The first support member 600 may support or receive (or accommodate) the vibration generating module 700. The first support member 600 is formed to have the same shape as the support frame 500 and may be supported by the support frame 500.

The first support member 600 according to an embodiment serves as a support for supporting the vibration generating module 700, and thus may include a metal material or a metal alloy material. For example, the first support member 600 may have any one of aluminum, an aluminum alloy, a magnesium alloy, an alloy of iron and nickel, and stainless steel, an alloy material thereof, or a bonding structure. However, it is not limited thereto. For example, the first support member 600 may have a thickness of 0.5 mm or more, but is not limited thereto. The first support member 600 may be a rear cover, a back cover, or a rear member, and is not limited to terms.

In order to reduce the weight of the display device, the first support member 600 according to another exemplary embodiment may have a thickness of less than 0.5 mm. In this case, the first support member 600 due to a relatively thin thickness compared to the front member 100 has weak rigidity, so the first support member 600 is warped according to the vibration of the vibration generating module 700 As a result, the vibration of the vibration generating module 700 may not be properly transmitted to the front member 100. It was recognized that there is a problem in that the first support member 600 absorbs some energy of the vibration generating module 700 when the first support member 600 does not have sufficient rigidity. For example, since energy of the vibration generating module 700 is absorbed by the first support member 600, insufficient vibration as much as the energy absorbed by the first support member 600 is transmitted to the display panel 200. do. As a result, it is difficult for the display panel 200 to output sufficient sound due to insufficient vibration of the vibration generating module 700. Accordingly, it has been recognized that there is a problem in that it is difficult to output a desired sound from the display panel 200 when energy or vibration of the vibration generating module 700 is lost. Accordingly, the inventors of the present specification conducted several experiments to increase or reinforce the rigidity of the first support member 600. In order to increase the rigidity of the first support member 600, another structure may be additionally configured on the first support member 600, but in this case, there is a problem that the thickness of the display device increases. In order to increase or reinforce the rigidity of the first support member 600 without increasing the thickness of the display device through various experiments, a forming part (or a rigidity reinforcing structure) was formed on the first support member 600. In addition, the display device according to an example of the present specification may further include at least one reinforcing part for reinforcing the rigidity of the first support member 600. For example, at least one reinforcing part may further include a reinforcing bar or a rigid reinforcing structure. This is described below.

The first support member 600 according to an example may include a first plate 610, a side portion 620, and a forming portion 630.

The first plate 610 (or support plate) may be disposed on the rear surface of the display panel 200. For example, the first plate 610 may be disposed to face the rear surface (or rear surface) of the display panel 200 and cover the rear surface of the display panel 200. The first plate 610 may be disposed (or supported) on the frame side 530 of the support frame 500 by a plurality of first connection members 613. The first connection member 613 may be a screw or a bolt, but is not limited thereto.

Each of the plurality of first connection members 613 passes through the corresponding hole 611 among the plurality of holes 611 provided along the edge portion of the first plate 610 and the frame side portion 530 of the support frame 500 The first plate 610 may be disposed (or connected) to the support frame 500 by being disposed (or connected) to a corresponding connection part 550 among the plurality of connection parts 550 formed in the. The first plate 610 may be disposed (or connected) or supported on the frame side 530 of the support frame 500 by a plurality of first connecting members 613. Accordingly, the first plate 610 and the support frame 500 include a four-sided support structure, so that the front member 100, the support frame 500, and the first support member 600 each have four surfaces (or upper, lower, left, and right) This can have the same stiffness. Accordingly, since the front member 100 and the first support member 600 have a four-sided support structure in which all four surfaces (up, down, left and right) are supported by the support frame 500, the front member 100 and the support frame (500) and the first support member 600 may have the same stiffness on the four support surfaces (upper, lower, left, and right edges) of each, whereby, the display panel 200 around the vibration generating module 700 The primary vibration mode can be formed, and the vibration efficiency of the vibration generating module 700 is improved as the vibration region (or excitation position) of the vibration generating module 700 and the maximum displacement position of the display panel 200 coincide with each other. The sound pressure, sound quality, and reproduction band of sound generated according to the vibration of the display panel 200 may be improved due to this.

The side portion 620 (or the support side portion) may be bent from the edge portion of the first plate 610. The side portion 620 increases the rigidity of the first support member 600 and provides a storage (or accommodation) space for accommodating the frame side portion 530 of the support frame 500 on the first plate 610. I can.

The side portion 620 may be disposed on the rear surface of the support frame 500. For example, the side portion 620 may be disposed on the rear edge portion of the support frame 500 via the second connection member (or second coupling member) 621. For example, the side portion 620 may be disposed, connected, or coupled to the frame portion 510 of the support frame 500 through the second connection member 621.

The second connection member 621 is interposed between the frame portion 510 and the side portion 620 of the support frame 500 to connect or connect the side portion 620 to the frame portion 510 of the support frame 500 Combine. The second connecting member 621 according to an embodiment may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad, but is not limited thereto. The adhesive resin and the adhesive layer of the second connection member 621 according to an exemplary embodiment may include an acrylic or urethane adhesive material, but are not limited thereto. For example, the adhesive resin and the adhesive layer of the second connection member 621 prevent or minimize the vibration of the first support member 600 according to the vibration of the vibration generating module 700 from being transmitted to the support frame 500 For this purpose, a urethane-based adhesive material having relatively soft properties may be included rather than an acrylic-based adhesive material having a relatively high hardness property, but is not limited thereto.

The forming part 630 may be disposed on the first plate 610. The forming part 630 may support the vibration generating module 700. The forming part 630 may be formed to be concave or convex from the first plate 610. The forming part 630 may increase or reinforce the rigidity of the first support member 600. For example, the forming unit 630 reduces or minimizes an increase in the thickness (or height) of the display device according to the thickness (or height) of the vibration generating module 700, and in order to slim the display device, the first plate ( 610) may be formed concave. However, it is not limited to this shape.

The forming part 630 may be formed to be concave to have a square shape from a front surface of the first plate 610 facing the rear surface of the display panel 200. The forming part 630 may be formed to be concave in the first plate 610 by protruding from the first plate 610 along a rear direction opposite to a front direction toward the rear side of the display panel 200. For example, the forming part 630 may be expressed as a first forming part, a groove part, a concave part, a protruding part, an intaglio part, a receiving part, a receiving part, or a rigid reinforcing part.

The forming unit 630 according to an exemplary embodiment may include a bottom surface 631 facing the rear surface of the display panel 200 and an inclined surface 633 between the first plate 610 and the bottom surface 631. have. The inclined surface 633 may provide a storage space (or support space) on the bottom surface 631, and may increase or reinforce the rigidity of the cover plate 610 and further, the rigidity of the first support member 600.

The first support member 600 according to an embodiment may further include a hole 640 formed in the forming part 630. The hole 640 may be formed in the forming part 630 so that a part of the rear surface of the vibration generating module 700 may be inserted or accommodated in a size and shape.

The hole 640 according to an embodiment is a first hole 641 formed in a first area of the forming part 630, and a first hole 641 formed in the second area of the forming part 630 while being parallel to the first hole 641. 2 holes 643 may be included.

The first hole 641 may be formed through the first area of the forming part 630 overlapping the first rear area A1 of the display panel 200. For example, the first rear area A1 of the display panel 200 is based on the center line (or horizontal center line) CL of the display panel 200 parallel to the first direction X, It may be one area (or left area) of the panel 200.

The second hole 643 may be formed through the second area of the forming part 630 overlapping the second rear area A2 of the display panel 200. For example, the second rear area A2 of the display panel 200 may be the other side area (or a right area) of the display panel 200 based on the center line CL of the display panel 200.

The first hole 641 and the second hole 643 according to an exemplary embodiment may have a circular shape as shown in FIGS. 2 and 3, but are not limited thereto. For example, the first hole 641 and the second hole 643 may have an oval shape or a polygonal shape, or a shape in which a rear portion of the vibration generating module 700 can be inserted or accommodated.

The first support member 600 according to an embodiment may further include a cable hole 650 and a wiring hole 660 formed in the forming part 630.

The cable hole 650 may be formed in the forming part 630 between the first hole 641 and the second hole 643. The cable hole 650 may have a size and shape through which the signal transmission member 350 for electrically connecting the printed circuit board 330 and the control board 340 may pass. One side of the signal transmission member 350 is connected to the printed circuit board 330 located between the rear surface of the display panel 200 and the first support member 600, and the other side of the signal transmission member 350 is a cable hole 650 ) To be drawn out to the rear side of the rear cover 600 and connected to the control board 340.

The wiring hole 660 may be formed on the bottom surface 631 of the forming part 630 adjacent to the hole 640. The wiring hole 660 may have a size and shape such that a driving signal cable of the vibration generating module 700 disposed between the rear surface of the display panel 200 and the first support member 600 can pass through and be drawn out. have. The wiring hole 660 according to an example includes a first wiring hole 661 formed on the bottom surface 631 of the forming portion 630 adjacent to the first hole 641 and a forming portion adjacent to the second hole 643 A second wiring hole 663 formed in the bottom surface 631 of 630 may be included.

The first support member 600 according to an embodiment may further include a second forming part 670.

The second forming part 670 according to an embodiment may be disposed on the first plate 610. For example, the second forming part 670 may protrude toward the rear side of the display panel 200 in a middle portion excluding an edge portion of the first plate 610. The second forming part 670 may protrude toward the rear surface of the display panel 200 so as to have an inclined surface at an intermediate portion excluding the edge portion of the first plate 610, thereby reinforcing the rigidity of the first plate 610. The second forming part 670 may support the forming part 630. Accordingly, the forming part 630 may be formed to be concave from the second forming part 670. For example, the second forming part 670 may be expressed as an auxiliary forming part, a groove part, a concave part, a protruding part, an intaglio part, a receiving part, a receiving part, or a rigid reinforcing part, and the term is not limited thereto. Accordingly, the rigidity of the first support member 600 may be increased due to the double reinforcing structure including the forming portion 630 and the second forming portion 670.

The second forming part 670 according to another exemplary embodiment is a middle portion excluding an edge portion of the first plate 610 and is opposite to the rear direction of the display panel 200. By protruding in the) direction, the rigidity of the first plate 610 may be reinforced. The forming part 630 may be formed to be concave or convex in the second forming part 670.

The first support member 600 according to an exemplary embodiment may further include a plurality of support portions 680. The plurality of support portions 680 may be support pins, brackets, or mounting portions, and are not limited to terms.

The plurality of support portions 680 may be disposed on the rear surface of the first plate 610. For example, each of the plurality of support portions 680 may be disposed along the rear edge portion of the first plate 610. Each of the plurality of support parts 680 may be disposed on a separate structure or cradle supporting the display device. Accordingly, the display device according to the exemplary embodiment of the present specification may be supported or disposed on a separate structure or cradle through a plurality of support parts 680.

2 to 5, the vibration generating module 700 may be interposed between the first support member 600 and the display panel 200. The vibration generating module 700 is supported by the first support member 600 and may vibrate the display panel 200. The vibration generating module 700 vibrates according to a driving signal including an acoustic signal or a haptic feedback signal to directly vibrate the display panel 200 to generate sound (DVS) according to the vibration of the display panel 200 or Haptic feedback (or haptic vibration) in response to a touch may be generated.

The vibration generating module 700 may be implemented as a sound generating device using a coil (or voice coil) and a magnet. The vibration generating module 700 according to an embodiment may include a bobbin and a coil wound around the bobbin, and the bobbin may contact the rear surface of the display panel 200.

The vibration generating module 700 may include one sound generating unit or a plurality of sound generating units 710 and 730. The sound generating units 710 and 730 may be disposed or received (or accommodated) in the forming part 630 provided in the first support member 600 to vibrate the display panel 200. For example, the sound generating units 710 and 730 may include a bobbin and a coil wound around the bobbin, and the bobbin may contact the rear surface of the display panel 200.

The vibration generating module 700 according to an embodiment includes a first sound generating unit 710 for vibrating the first rear surface of the display panel 200 and a second sound for vibrating the second rear surface of the display panel 200. It may include a generating unit 730.

The first sound generating unit 710 may be supported or accommodated (or accommodated) in the first area of the forming part 630 in the first support member 600 and disposed on the first rear surface of the display panel 200 Can be. The first sound generating unit 710 vibrates according to a first driving signal including an acoustic signal or a haptic feedback signal to directly vibrate the first rear surface of the display panel 200, thereby causing sound according to the vibration of the display panel 200. It may generate (DVS) or generate haptic feedback (or haptic vibration) in response to a user touch. For example, a portion of the rear surface of the first sound generating unit 710 may be inserted or accommodated in the first hole 641 formed in the first area of the forming unit 630 to reduce the thickness of the display device.

The second sound generating unit 730 may be supported or accommodated (or accommodated) in the second area of the forming part 630 of the first support member 600 and disposed on the second rear surface of the display panel 200 Can be. The second sound generating unit 730 vibrates according to a second driving signal including an acoustic signal or a haptic feedback signal to directly vibrate the second rear surface of the display panel 200, thereby causing sound according to the vibration of the display panel 200. It may generate (DVS) or generate haptic feedback (or haptic vibration) in response to a user touch. For example, a part of the rear surface of the second sound generating unit 730 may be inserted or accommodated in the second hole 643 formed in the second region of the forming unit 630, thereby reducing the thickness of the display device.

The first driving signal and the second driving signal may be the same or different from each other. For example, the first driving signal may include a left sound signal or a first haptic feedback signal for the first area (or left area) A1 of the display panel 200. The second driving signal may include a right acoustic signal or a second haptic feedback signal for the second area (or right area) A2 of the display panel 200.

Each of the first and second sound generating units 710 and 730 may be disposed on the first support member 600 so as to be symmetrical about the center line (or horizontal center line) CL of the display panel 200. And may include substantially the same structure. Each of the first and second sound generating units 710 and 730 may be expressed as a vibration unit, an actuator, an exciter, or a transducer, and is not limited to terms.

Accordingly, the display device according to the exemplary embodiment of the present specification may output sound to the front of the display panel 200 by using the display panel 200 as a vibration plate for generating sound, and through this, sound quality may be improved. , It can increase viewer's immersion.

In addition, in the display device according to the exemplary embodiment of the present specification, the printed circuit board 330 connected to the display panel 200 is positioned between the display panel 200 and the first support member 600 to prevent the display panel 200. By being separated from the rear surface, damage to the printed circuit board 330 due to vibration of the display panel 200 may be prevented or minimized.

In addition, the display device according to an embodiment of the present specification has a four-sided support structure in which all four surfaces (up, down, left and right) of the front member 100 and the first support member 600 are supported by the support frame 500. By having the first vibration mode generated according to the vibration of the vibration generating module 700 can be formed around the vibration generating module 700, the vibration area of the vibration generating module 700 and the maximum of the display panel 200 As the displacement positions coincide with each other, the vibration efficiency of the vibration generating module 700 may be improved, and thus the sound pressure, sound quality, and reproduction band of sound generated according to the vibration of the display panel 200 may be increased. For example, the display device according to an exemplary embodiment of the present specification may output sound at 100 Hz to 20 kHz at a sound pressure level of 65 dB or higher according to the vibration of the display panel 200, for example, sound at 20 kHz at 150 Hz to 75 dB. It can output at the sound pressure level above.

6 is an enlarged view of a portion'A' shown in FIG. 4, which is a view for explaining a first sound generating unit of a vibration generating module according to an exemplary embodiment of the present specification.

4 and 6, the first sound generating unit 710 of the vibration generating module 700 according to an embodiment of the present specification is an acoustic signal applied based on Fleming's left hand rule. Alternatively, it may be configured to vibrate the display panel 200 according to a current of a driving signal including a haptic feedback signal.

The first sound generating unit 710 according to an embodiment includes a base plate 711, a magnet 712, a center pole 713, a bobbin 714, a coil 715, an edge plate 716, and a damper 717. ), and a terminal portion 718.

The base plate 711 is disposed on the first support member 600 and may be a main body of the first sound generating unit 710. The base plate 711 supports the magnet 712, the center pole 713, and the edge plate 716, respectively. The base plate 711 may be made of a magnetic metal material such as iron (Fe). The base plate 711 may be expressed as a lower plate, a base frame, or a yoke, but is not limited to terms.

The base plate 711 includes a groove for accommodating the magnet 712 and the bobbin 714. For example, the groove portion may be formed concave from the upper surface of the base plate 711 to have a circular shape, but is not limited to the shape.

The base plate 711 according to an embodiment may be disposed on the bottom surface of the forming portion 630 of the first support member 600 through a fixing member such as an adhesive or double-sided tape.

The base plate 711 according to another exemplary embodiment may be inserted or accommodated in the first hole 641 formed in the forming part 630 of the first support member 600 with a part of its rear surface. In this case, the base plate 711 according to another embodiment may include a rear protrusion 711a inserted into the first hole 641 formed in the forming part 630 of the first support member 600. The rear protrusion 711a protrudes from the base plate 711 toward the first support member 600 to include a groove for accommodating the magnet 712 and the bobbin 714, and the forming part 630 of the rear cover 600 It may protrude or be exposed to the outside of the rear surface of the rear cover 600 by penetrating through the first hole 641 formed therein. Accordingly, the heat generated by driving (or vibration) of the first sound generating unit 710 passes through the first hole 641 and protrudes to the outside of the rear surface of the rear cover 600 or is exposed to the base plate 711 It can be radiated through the rear surface of the unit according to the air cooling method.

The base plate 711 according to another embodiment is a forming part of the first support member 600 by a plurality of second connection members 701 penetrating the bottom surface of the forming part 630 of the first support member 600. May be placed at 630. Each of the plurality of second connection members 701 first supports the first sound generating unit 710 by being disposed in each of a plurality of holes formed in the corners of the base plate 711 penetrating the bottom surface of the forming part 630 It may be disposed on the forming part 630 of the member 600.

The magnet 712 may be expressed as a magnetic circuit unit or a magnetic vibration unit in which the center pole 713, the bobbin 714, and the coil 715 are disposed on the base plate 711 to vibrate the display panel 200. have.

Work????? The magnetic circuit unit may have an external magnetic type or a dynamic type structure including a magnet 712 disposed outside the coil 715, or a magnet 712 disposed inside the coil 715 It may have an internal magnetic type or micro-type structure including. The first sound generating unit 710 including a magnetic circuit unit having a magnetic-resistant type structure has the advantage of having a small leakage magnetic flux and a small overall size. The first sound generating unit 710 according to the exemplary embodiment of the present specification may have an external-type or internal-type structure, and in the following description, it is assumed that it has an internal-type structure.

The magnet 712 according to an embodiment is inserted into the groove of the base plate 711. The magnet 712 may be a permanent magnet having a cylindrical shape that can be inserted into the bobbin 714. According to an embodiment, the magnet 712 may be a sintered magnet such as barium ferrite, and the material is ferric trioxide (Fe ₂ O ₃ ), barium carbonate (BaCO ₃ ), neodymium magnet, magnetic force. It may include at least one of an alloy cast magnet of strontium ferrite (Fe ₁₂ O ₁₉ Sr), aluminum (Al), nickel (Ni), cobalt (Co) with improved components. For example, the neodymium magnet may be neodymium-iron-boron (Nd-Fe-B).

The bobbin 714 according to an embodiment is disposed on the base plate 711 to surround the magnet 712. The bobbin 714 may have a circular shape or an ellipse shape, but is not limited thereto. Oval shape includes elliptical shape, rectangular shape with rounded corners, or non-circular curved shape having a width different from its height Yes, the embodiment is not limited thereto. For example, in the oval-shaped bobbin 714, the ratio of the diameter of the major axis and the diameter of the minor axis may be in the range of 1.3:1 to 2:1. The oval-shaped bobbin 714 can improve sound in a high-pitched range than that of a circular shape, and may generate less heat due to vibration, and thus can have excellent heat dissipation characteristics.

The coil 715 according to an exemplary embodiment is wound around the outer circumferential surface of the bobbin 714 to receive a current (or voice current) of a driving signal from the outside. The coil 715 is raised and lowered together with the bobbin 714. The coil 715 may be expressed as a voice coil or the like, and is not limited to terms. When a current is applied to the coil 715, the entire bobbin 714 moves up and down according to Fleming's left-hand rule based on the applied magnetic field formed around the coil 715 and the external magnetic field formed around the magnet 712. Then, sound (DVS) or sound waves are generated by vibration of the display panel 200 due to vertical movement (or vibration) of the bobbin 714.

According to an embodiment, as the coil 715 is wound around the outer circumferential surface of the bobbin 714, heat generated from the coil 715 is transferred to the bobbin 714, and the display panel due to the heat of the bobbin 714 In order to reduce image quality defects affecting 200, the coil 715 may be made of a material having relatively excellent heat dissipation properties. In addition, since the bobbin 714 vibrates up and down, single vibration occurs due to the vertical vibration, and the single vibration of the bobbin 714 may be affected by the weight of the bobbin 714. Since the weight of the bobbin 714 is affected by the weight of the coil 715, when the weight of the coil 715 is reduced, the single vibration of the bobbin 714 may be reduced. Therefore, when considering the heat transferred to the bobbin 714 and the single vibration of the bobbin 714, the coil 715 has better thermal conductivity than copper, which is a material of a general coil, and thus has relatively excellent heat dissipation characteristics and is relatively lighter than copper. It may be made of aluminum.

In addition, since the aluminum oxide film is formed in the air, it is not easy to solder when manufacturing the first sound generating unit 710, so that the coil 715 according to an embodiment of the present specification is an aluminum layer for heat dissipation (or the first Metal layer), and a metal outer layer (or a second metal layer) surrounding the aluminum layer. The metal outer layer may include one of copper (Cu), silver (Ag), and gold (Au). For example, the coil 715 may be a copper clad aluminum wire. Since the metal outer layer is formed in the form of a thin film outside the first metal layer, the weight increase of the coil 715 may not be significantly affected. The coil 715 according to the exemplary embodiment of the present specification may have a weight reduction of about 60% compared to a coil made of only copper material or copper wire.

According to an embodiment, the bobbin 714 may be a structure formed of a material obtained by processing pulp or paper, aluminum or magnesium, or an alloy thereof, or a synthetic resin such as polyimide. For example, the bobbin 714 is a polyimide film having relatively excellent heat dissipation characteristics and relatively light in order to prevent local image quality defects of the display panel 200 due to heat generated from the coil 715. It can be implemented as

The polyimide film has properties such as heat resistance, electrical insulation, flexibility, and non-flammability, without changing its physical properties in a wide temperature range from -273°C to 400°C. In addition, the polyimide film has excellent thermal and mechanical strength, so that the reliability of the bobbin 714 can be improved, and due to excellent heat dissipation characteristics, it is possible to reduce the generation of heat due to vibration of the bobbin 714. For example, the polyimide film may be KAPTON, and may be a condensation of pyromellitec dianhydride and 4,4'-oxydianiline.

The center pole 713 is accommodated or inserted in the bobbin 714 to guide the lifting of the bobbin 714. For example, the center pole 713 is inserted into the bobbin 714 so that the outer peripheral surface of the center pole 713 is surrounded by the bobbin 714. The center pole 713 may be expressed as an elevating guide or pole pieces, but is not limited to terms.

The edge plate 716 is disposed on the front edge portion of the base plate 711 and supports the damper 717. Work????? Accordingly, the edge plate 716 may be formed at a predetermined height on the front edge of the base plate 711 so as to have the same shape as the bobbin 714. The edge plate 716 according to another embodiment may include a hollow portion formed at a predetermined height on the front edge of the base plate 711 and having the same shape as the bobbin 714.

The damper 717 may be disposed between the edge plate 716 and the magnetic circuit unit. For example, the damper 717 may be disposed between the edge plate 716 and the bobbin 714. The damper 717 may be expressed in other terms such as spider, suspension, or edge, but is not limited thereto.

One side of the damper 717 according to an embodiment may be connected to the edge plate 716, and the other side of the damper 717 may be connected to an upper outer surface of the bobbin 714. The damper 717 may have a corrugated structure between one side and the other side, and may control the vibration of the bobbin 714 while contracting and relaxing according to the vertical motion of the bobbin 714. The damper 717 is connected between the bobbin 714 and the edge plate 716 to limit the vibration distance of the bobbin 714 through a restoring force. For example, when the bobbin 714 vibrates more than a certain distance or less than a certain distance, the bobbin 714 may return to its original position by the restoring force of the damper 717.

Since the first sound generating unit 710 is interposed between the display panel 200 and the first supporting member 600, it must have a relatively thin thickness in order to make the display device thinner or slim. Accordingly, the bobbin 714 If the height (or thickness) of) is lowered, there is a problem that the sound pressure is lowered. Accordingly, in order to solve the problem of lowering the sound pressure due to the lowering of the height of the bobbin 714, a structure for increasing the area of the damper 717 disposed around the bobbin 714 may be configured. When the area of the damper 717 is increased, the space for arranging the wiring for applying current to the coil 715 is narrowed, and thus interference between the wiring and the damper 717 may occur. Accordingly, the damper 717 may be configured as a conductor, so that the damper 717 may function as a wiring.

The damper 717 according to an embodiment may include a metal material electrically connected to the coil 715. For example, the damper 717 may be made of stainless steel or copper (Cu), but is not limited thereto.

The terminal portion 718 may include a pair of terminals disposed on one side of the base plate 711 and electrically connected to the damper 717. The terminal portion 718 may be exposed to the outside of the rear surface of the first support member 600 by overlapping with the first wiring hole 661 formed in the forming portion 630 of the first support member 600. A pair of terminals disposed on the terminal unit 718 may be electrically connected to a driving signal cable passing through the first wiring hole 661 and may receive a driving signal from the display host system through the driving signal cable.

The first sound generating unit 710 according to an embodiment may further include a bobbin protection member 719.

The bobbin protection member 719 is disposed on the front side (or the front end) of the bobbin 714 to transmit the lifting (or vibration) of the bobbin 714 to the rear side of the display panel 200. The bobbin protection member 719 according to an example has a ring shape disposed on the front surface of the bobbin 714, a disk shape covering the entire front surface of the bobbin 714, or a cap shape surrounding the front and upper outer surfaces of the bobbin 714 It may have, but is not limited to the shape. For example, the bobbin protection member 719 may be expressed as a bobbin ring or the like, and is not limited to terms.

The bobbin protection member 719 may be disposed (or coupled) to the rear surface of the display panel 200 via the first adhesive member. The first adhesive member may be interposed between the back plate 250 of the display panel 200 and the bobbin protection member 719. The first adhesive member according to an example may include an adhesive or a double-sided tape, but is not limited thereto.

The second sound generating unit 730 of the vibration generating module 700 according to the exemplary embodiment of the present specification is a first sound generating unit based on the center line (or horizontal center line) CL of the display panel 200. It may be disposed on the first support member 600 so as to be symmetric with the 710. Since the second sound generating unit 730 includes substantially the same structure as the first sound generating unit 710, a redundant description thereof will be omitted.

7 is another enlarged view of portion'A' shown in FIG. 4, in which a blocking member is additionally disposed between the display panel and the vibration generating module. Accordingly, in the following description, redundant descriptions of the same components other than the blocking member and the components related thereto are simplified or omitted.

Referring to FIG. 7, the display device according to an exemplary embodiment of the present specification may further include a blocking member 720 disposed between the display panel 200 and the vibration generating module 700. The first sound generating unit 710 according to an embodiment may further include a blocking member 720.

The blocking member 720 (heat blocking member or heat insulating member) transfers heat generated from the first sound generating unit 710 to the display panel 200 according to the driving (or vibration) of the first sound generating unit 710 It is possible to prevent or minimize the local temperature increase of the display panel 200 due to heat generated from the first sound generating unit 710 by blocking or minimizing the occurrence, through which the first sound generating unit 710 overlaps. Deterioration of image quality of the display panel 200 caused by a sudden temperature difference in a local area of the display panel 200 can be prevented. For example, heat generated from the coil 715 of the first sound generating unit 710 is not transmitted to the display panel 200 by the blocking member 720, but the first support member ( 600), or through the rear (or rear) of the base plate 711, it can be radiated according to an air cooling method. The blocking member 720 may be configured to be the same as or similar to the size of the first sound generating unit 710, but is not limited thereto. For example, the blocking member 720 may have the same or similar size as the pixel array substrate 210.

As an example, the blocking member 720 is polyethylene, polyvinylpyrrolidone (PVP), polyethylene oxide (PEO), polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), polylactic acid (PLA), It may have a film form or a plate form including any one of polyamide (PA), polyester (PE), and polypropylene (PP), but is not limited thereto. As another example, the blocking member 720 may have a film form or a plate form including any one of rubber, silicone, fiber reinforcement material, and composite resin including fiber reinforcement material, but is not limited thereto. For example, the fiber reinforcement may be implemented as one of or a combination of carbon fiber reinforced plastics, glass fiber reinforced plastics, and graphite fiber reinforced plastics, It is not limited thereto.

The blocking member 720 according to an embodiment may be disposed between the rear surface of the display panel 200 and the bobbin 714 of the first sound generating unit 710, and in this case, the bobbin protection member 719 is omitted. Can be. For example, the blocking member 720 is disposed on the bobbin 714 of the first sound generating unit 710 and disposed on the back plate 250 of the display panel 200 or connected (or coupled) via an adhesive member Can be.

The blocking member 720 according to another exemplary embodiment may be disposed between the back plate 250 of the display panel 200 and the bobbin protection member 719 of the first sound generating unit 710. For example, the blocking member 720 may be disposed on the front surface of the bobbin protection member 719 and disposed or connected (or coupled) to the back plate 250 of the display panel 200 via an adhesive member. have.

The blocking member 720 may be disposed between the display panel 200 and the second sound generating unit 730 of the vibration generating module 700. As an example, the blocking member 720 may be disposed between the rear surface of the display panel 200 and the bobbin 714 of the second sound generating unit 730, in this case, the second sound generating unit 730 The bobbin protection member 719 may be omitted. As another example, the blocking member 720 may be disposed between the back plate 250 of the display panel 200 and the bobbin protection member 719 of the second sound generating unit 730.

The display device according to the exemplary embodiment of the present specification includes a blocking member 720 disposed between the display panel 200 and the vibration generating module 700, so that the display panel 200 due to heat generated from the vibration generating module 700 It is possible to prevent or minimize the local temperature rise of the display panel 200, which is caused by a sudden temperature difference in the local area of the display panel 200 overlapping with the vibration generating module 700 through this. Can be prevented.

FIG. 8 is another enlarged view of a portion'A' shown in FIG. 2, wherein the arrangement or connection (or coupling) structure between the vibration generating module and the first support member is changed. Accordingly, in the following description, redundant descriptions of the same components other than the arrangement or connection (or coupling) structure between the vibration generating module and the first support member will be simplified or omitted.

Referring to FIG. 8, the first sound generating unit 710 of the vibration generating module 700 according to the exemplary embodiment of the present specification is a forming part of the first support member 600 by a plurality of second connecting members 701. It may be disposed, supported, or connected (or coupled) to 630.

Each of the plurality of second connecting members 701 is connected or disposed to the inner surface of the first support member 600 through the vibration generating module 700 to support the vibration generating module 700 to the first support member 600 Or connect (or combine). For example, each of the plurality of second connection members 701 is disposed on the bottom surface of the forming unit 630 through the edge portion of the base plate 7100 of the first sound generating unit 710 according to the inner connection method, or By being connected, the first sound generating unit 710 may be supported or connected (or coupled) to the bottom surface of the forming part 630.

The first support member 600 may further include a plurality of boss portions 635 disposed on the bottom surface of the forming portion 630. Each of the plurality of boss portions 635 protrudes from the bottom surface of the forming portion 630 overlapping the edge portion of the base plate 7100 of the first sound generating unit 710 and among the plurality of second connection members 701 A hole connected to the corresponding second connection member 701 may be included. For example, each of the plurality of boss portions 635 may be inserted into or accommodated in a corresponding boss groove among a plurality of boss grooves provided at an edge portion of the base plate 7100 of the first sound generating unit 710.

The second sound generating unit 730 of the vibration generating module 700 according to the embodiment of the present specification is the same as the first sound generating unit 710, the bottom of the forming part according to an inner connection method using a plurality of second connecting members. It may be disposed on the face, supported or connected (or bonded).

In the display device according to the exemplary embodiment of the present specification, the vibration generating module 700 is connected (or coupled) to the first supporting member 600 according to an inner connection method using a plurality of second connecting members 701, thereby generating a vibration module. The supporting force or coupling force between the 700 and the first supporting member 600 may be increased, and when the vibration generating module 700 is driven (or vibrated), the vibration generating module 700 and the first supporting member 600 may be Noise generation due to unnecessary vibration can be prevented. In addition, in the display device according to the exemplary embodiment of the present specification, each of the plurality of second connecting members 701 that supports or couples the vibration generating module 700 to the first support member 600 is the first support member 600. Since it is not exposed to the rear (or rear) of the body, it has a rear clean back structure, so the aesthetics of the design can be improved. In addition, since the display device according to the exemplary embodiment of the present specification may be configured between the display panel 30 and the support member 50 by reducing the thickness of the vibration generating module 90, the thickness of the display device may be reduced. have. In addition, since the vibration generating module 700 according to the embodiment of the present specification may be configured between the display panel 200 and the support member 50, the vibration generating module 700 at the rear of the first support member 600 Since a hole for the arrangement of the display device is not required, the degree of freedom according to the size or model of the display device can be improved.

FIG. 12 is another enlarged view of a portion'A' shown in FIG. 2, in which an arrangement or connection (or coupling) structure between the vibration generating module and the first support member is changed. Accordingly, in the following description, redundant descriptions of the same components other than the arrangement or connection (or coupling) structure between the vibration generating module and the first support member will be simplified or omitted.

Referring to FIG. 12, the first sound generating unit 710 of the vibration generating module 700 according to the exemplary embodiment of the present specification is disposed on the forming part 55a of the first support member 600 according to a bidirectional connection method, or It can be supported or combined.

The display device according to the exemplary embodiment of the present specification may further include a plurality of coupling members 703 that are fastened (or connected) to each of the plurality of second connection members 701 penetrating the first support member 600. have.

Each of the plurality of coupling members 703 penetrates through the edge portion of the base plate 711 of the first sound generating unit 710 to correspond to the corresponding second connection member 701 among the plurality of second connection members 701. It can be arranged or connected (or combined). For example, each of the plurality of coupling members 703 is a corresponding second hole 711b among the plurality of second holes 711b formed in the edge portion of the base plate 711 of the first sound generating unit 710 Can be inserted into or accommodated. The plurality of coupling members 703 according to an exemplary embodiment may be a nut or a pem nut having a head portion larger than the diameter of the second hole 711b, but is not limited thereto.

Each of the plurality of second connection members 701 penetrates through the bottom surface of the forming part 630 of the first support member 600 to correspond to the corresponding second connection member 701 among the plurality of second connection members 701. By being connected or coupled, the first sound generating unit 710 may be supported or coupled to the bottom surface of the forming part 630. Accordingly, the first sound generating unit 710 is formed on the bottom surface of the forming unit 630 by a two-way connection method (or inner and outer connection method) using the second connection member 701 and the coupling member 703. It can be placed, supported, or connected (or coupled).

The first support member 600 may further include a hole 642 formed on the bottom surface of the forming part 630. The hole 642 may include a thread connected to or fastened to the second connection member 701 or may have a hole shape, but is not limited thereto.

The second sound generating unit 730 of the vibration generating module 700 according to the exemplary embodiment of the present specification is the same as the first sound generating unit 710, the plurality of second connecting members 701 and the coupling member 703 Depending on the two-way connection method using ), it may be disposed, supported, or connected (or coupled) on the bottom surface of the forming part.

In the display device according to the embodiment of the present specification, the vibration generating module 700 and the first support member 600 are connected or coupled according to a two-way connection method using the second connection member 701 and the coupling member 703. The supporting force or coupling force between the vibration generating module 700 and the first support member 600 may be increased, and when the vibration generating module 700 is driven (or vibrated), the vibration generating module 700 and the first support member 600 ) Can be prevented from generating noise due to unnecessary vibration.

FIG. 10 is an exploded perspective view illustrating a display device according to another exemplary embodiment of the present specification, and FIG. 11 is a diagram illustrating a support frame, a driving circuit unit, and a holder disposed on a rear surface of the display panel shown in FIG. 10, and FIG. As a cross-sectional view of line III-III' shown in FIG. 11, which is a modified second support member of the display device shown in FIGS. 1 to 9. Accordingly, in the following description, redundant descriptions of the same components other than the second support member and the components related thereto will be simplified or omitted.

10 to 12, in the display device according to another exemplary embodiment of the present specification, the second support member 400 is disposed on the support frame 500 and the printed circuit board 330 of the driving circuit unit 300 It may include a holder 410 to support.

The holder 410 may prevent vibration of the display panel 200 transmitted to the printed circuit board 330 by separating the printed circuit board 330 from the rear surface of the display panel 200. The printed circuit board 330 may be disposed on the holder 410. The first support member 600 may protect the printed circuit board 330.

The holder 410 according to an embodiment may include a second plate 411 and a pair of bridges 413.

The second plate 411 (or holder plate) may be disposed between the rear surface of the display panel 200 and the printed circuit board 330. The second plate 411 may be spaced apart from the rear surface of the display panel 200 by a predetermined distance. For example, the second plate 411 may have a larger size than the printed circuit board 330.

The second plate 411 according to an exemplary embodiment may be disposed on the rear surface of the printed circuit board 330 via the second adhesive member 430.

The second adhesive member 430 may be interposed between the back side of the second plate 411 facing the first support member 600 and the printed circuit board 330. The second adhesive member 430 according to an embodiment is made of a vibration absorbing material capable of blocking or minimizing the transmission of vibration of the display panel 200 to the printed circuit board 330 or an elastic material capable of being compressed to a certain degree. Can be configured. For example, the second adhesive member 430 may include a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer), but is not limited thereto.

The pair of bridges 413 may be bent (or folded) from both sides of the second plate 411 and connected to the support frame 500 to support the second plate 411. For example, the pair of bridges 413 may be bent (or folded) from both ends or both sides of the second plate 411 and connected to the support frame 500 to support the second plate 411. The pair of bridges 413 may be disposed on the frame side 530 of the support frame 500 by a plurality of third connection members 415. The third connection member 415 may be a screw or a bolt, but is not limited thereto. Accordingly, the second plate 411 may be supported by a pair of bridges 413 connected to or arranged on the support frame 500, and thus may be spaced apart from the rear surface of the display panel 200 by a predetermined distance.

The second support member 400 according to the exemplary embodiment of the present specification may further include a buffer member 450.

The buffer member 450 may be disposed between the second plate 411 of the holder 410 and the rear surface of the display panel 200. The buffer member 450 prevents physical contact between the rear surface of the display panel 200 and the printed circuit board 330 when the display panel 200 vibrates, and the vibration of the display panel 200 prevents the printed circuit board 330 ) Can be blocked or minimized.

The buffer member 450 according to an embodiment may be disposed between the rear surface of the display panel 200 and the first support member 600. For example, the second plate 411 may be disposed parallel to both edge portions of the second plate 411 in parallel with the length direction X of the second plate 411. The buffer member 450 may be formed of a vibration absorbing material capable of blocking or minimizing the transmission of vibration of the display panel 200 to the printed circuit board 330 or an elastic material capable of being compressed to a certain degree. For example, the buffer member 450 may include a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer), but is not limited thereto.

13 is a view showing a display device according to another exemplary embodiment of the present specification, and FIG. 14 is a cross-sectional view of a line IV-IV' shown in FIG. 13, which is a balance member in the display device shown in FIGS. It is an additional configuration. 13 is a rear view of the display panel in which the first supporting member and the vibration generating module are removed from the display device illustrated in FIG. 2. Accordingly, in the following description, redundant descriptions of the same components other than the balance member and the components related thereto will be simplified or omitted.

13 and 14, in the display device according to another exemplary embodiment of the present specification, the balance member 800 may be disposed on the rear surface of the display panel 200. For example, the balance member 800 includes a first area overlapping the printed circuit board 330 of the driving circuit unit 300 and a second area overlapping the vibration generating module 700 among the rear areas of the display panel 200. It may be disposed in the third area except for. The balance member 800 may equalize the vibration balance between the first region and the third region of the display panel 200 generated according to the vibration of the vibration generating module 700. For example, the balance member 800 prevents vibration deviation in a first area in which the printed circuit board 330 is disposed and a third area in which the printed circuit board 330 is not disposed among the rear surface of the display panel 200. Or minimize it.

For example, since the printed circuit board 330 (or the first printed circuit board or the main printed circuit board) has a mass, it may serve as a mass for the first area of the display panel 200. Accordingly, when the display panel 200 vibrates, vibration deviation or maximum vibration displacement deviation occurs in the first region where the printed circuit board 330 is disposed and the third region where the printed circuit board 330 is not disposed. The vibration efficiency of the vibration generating module 700 may be reduced. Therefore, the balance member 800 acts as a mass for the third area where the printed circuit board 330 is not disposed, so that the first area where the printed circuit board 330 is disposed and the printed circuit board 330 are not disposed. Vibration efficiency of the vibration generating module 700 may be increased by matching the vibration balance of the third region.

The balance member 800 according to an embodiment may include a second printed circuit board 810 and a third adhesive member 830.

The second printed circuit board 810 may be disposed on the rear surface of the display panel 200. For example, the second printed circuit board 810 has a first area overlapping the printed circuit board 330 of the driving circuit unit 300 among the rear areas of the display panel 200 and the vibration generating module 700. It may be disposed in the third area other than the second area. The second printed circuit board 810 according to an embodiment may be made of the same material as the printed circuit board 330, and may have a larger size than the printed circuit board 330. For example, the second printed circuit board 810 may be expressed as another printed circuit board, a dummy printed circuit board, or an auxiliary printed circuit board, but is not limited to terms.

The second printed circuit board 810 according to an exemplary embodiment includes a main substrate portion 811 disposed at a second rear edge portion parallel to the first rear edge portion of the display panel 200, and an intermediate portion of the main substrate portion 811. The first substrate extension 813 extending from the portion toward the first rear edge portion of the display panel 200, and extending from one edge portion of the main substrate portion 811 toward the first rear edge portion of the display panel 200 And a third substrate extension 817 extending from the other side edge portion of the main substrate portion 811 toward the first rear edge portion of the display panel 200. For example, the second printed circuit board 810 may have a shape of “└┴┘” extending from the second rear edge of the display panel 200 to the first rear edge.

The first substrate extension part 813 and the second substrate extension part 815 may be parallel to each other with an arrangement area of the first sound generating unit 710 of the vibration generating module 700 interposed therebetween, and the first substrate extension The portion 813 and the third substrate extension 817 may be parallel to each other with an arrangement area of the first sound generating unit 710 of the vibration generating module 700 interposed therebetween.

The third adhesive member 830 may be interposed between the rear surface of the display panel 200 and the second printed circuit board 810. For example, the second printed circuit board 810 may be disposed (or combined) on the rear surface of the display panel 200 via the adhesive member 830.

In order to prevent or minimize noise generated by the vibration of the second printed circuit board 810 due to the vibration of the display panel 200, the third adhesive member 830 according to an exemplary embodiment is It may be made of an elastic material that can be compressed. For example, the third adhesive member 830 may be made of a material capable of blocking or minimizing the vibration of the display panel 200 from being transmitted to the printed circuit board 330. For example, the third adhesive member 830 may include a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer), but is not limited thereto.

Therefore, the display device according to another exemplary embodiment of the present specification can implement vibration balancing of the display panel 200 by the balance member 800 while having the same effect as the display device illustrated in FIGS. 1 to 12, The vibration efficiency of the vibration generating module 700 may be increased, a reproduction band of sound generated according to the vibration of the display panel 200 may be increased, and a sound pressure of the sound may be increased.

As another example, the balance member 800 according to the exemplary embodiment of the present specification may be applied to a display device according to another exemplary embodiment of the present specification, as shown in FIGS. 11 and 12.

FIG. 15 is a view showing a display device according to another exemplary embodiment of the present specification, and FIG. 16 is a cross-sectional view of a line V-V' shown in FIG. 15, which is The configuration of the vibration generating module was changed. Accordingly, in the following description, redundant descriptions of the same components except for the vibration generating module and the components related thereto will be simplified or omitted.

15 and 16, in the display device according to another embodiment of the present specification, the vibration generating module 700 includes a first sound generating unit 710, a second sound generating unit 730, and a third sound. A generation unit 750 and a fourth sound generation unit 770 may be included.

Since each of the first sound generating unit 710 and the second sound generating unit 730 is substantially the same as the first sound generating unit 710 and the second sound generating unit 730 of the above-described display device, the same Reference numerals are given, and redundant descriptions thereof may be omitted or simplified.

Each of the first sound generating unit 710 and the second sound generating unit 730 according to an exemplary embodiment may vibrate the display panel 200 to output sound in a first sound range. The sound in the first sound range according to an exemplary embodiment may be output forward from the middle portion of the display panel 200. The sound in the first sound range may have a frequency in the low range. For example, the low frequency band may be less than 200 Hz, but is not necessarily limited thereto, and may be less than 3 kHz.

The third sound generation unit 750 may vibrate the third rear surface of the display panel 200 to output sound in a second sound range higher than that in the first sound range. The fourth sound generating unit 770 may vibrate the fourth rear surface of the display panel 200 to output sound in a second sound range. For example, the third rear surface of the display panel 200 may include a third rear edge portion, a left edge portion, or a side edge portion. The fourth rear surface of the display panel 200 may include a fourth rear edge portion, a right edge portion, or the other edge portion.

The sound in the second sound range according to an exemplary embodiment may be output forward from an edge of the display panel 200. The sound in the second sound range may have a frequency in a middle or high frequency range. For example, the mid-range may be 200 Hz to 3 kHz, but is not necessarily limited thereto, and may be 3 kHz to 5 kHz. The high frequency band may be 3 kHz or more, but is not necessarily limited thereto, and may be 5 kHz or more.

The third sound generating unit 750 may output a first sound (or left sound) together with the first sound generating unit 710, and the fourth sound generating unit 770 may be a second sound generating unit 730. Together with, a second sound (or a right sound) may be output. The third and fourth sound generating units 750 and 770 may supplement or improve the sound of the first and second sound generating units 710 and 730, for example, a high-pitched sound. In addition, each of the first sound generating unit 710, the second sound generating unit 730, the third sound generating unit 750, and the fourth sound generating unit 770 outputs multi-channel stereophonic sound or stereo sound. I can.

The third sound generating unit 750 according to an exemplary embodiment may include a first piezoelectric element 751 disposed on a third rear edge of the display panel 200.

The first piezoelectric element 751 may include a piezoelectric material layer having a piezoelectric effect.

The piezoelectric material layer may include a piezoelectric material generating vibration by an electric field. Here, in the piezoelectric material, a potential difference is generated by dielectric polarization according to the relative position change of the positive (+) ions and the negative (-) ions while the pressure or twisting phenomenon acts on the crystal structure by an external force. It has a characteristic that vibration is generated by an electric field.

The piezoelectric material layer according to an embodiment may include a piezoelectric material of a polymer material, a piezoelectric material of a thin film material, a piezoelectric material of a composite material, or a piezoelectric material of a single crystal ceramic or a polycrystalline ceramic. The piezoelectric material of the polymer material according to an embodiment may include polyvinylidene fluoride (PVDF), poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFe)), or poly(vinylidene fluoride-tetrafluoroethylene) (P(VDFTeFE)). I can. The piezoelectric material of the thin film material according to an embodiment may include ZnO, CdS, or AlN. The piezoelectric material of the composite material according to an embodiment may include lead zirconate titanate (PZT)-PVDF, PZT-silicon rubber, PZT-epoxy, PZT-foam polymer, or PZT-foam urethane. The piezoelectric material of the single crystal ceramic according to the embodiment is aluminum phosphate (eg, berlinite, α-AlPO ₄ ), silicon dioxide (eg, α-SiO ₂ ), lithium niobate (LiNbO ₃ ), terbium molydbate (Tb ₂ (MoO ₄ ) ₃ ), lithium tetraborate (Li ₂ B ₄ O ₇ ), or ZnO. The piezoelectric material of the polycrystalline ceramic according to an embodiment may include PZT-based, PT-based, PZT-complex perovskite-based, or barium titanate (BaTiO ₃ ).

As another example, the first piezoelectric element 751 may include a plurality of first portions and a plurality of second portions respectively disposed between the plurality of first portions. Each of the plurality of first portions may be made of a ceramic-based material capable of implementing relatively high vibration, or may be made of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure has piezoelectric and reverse piezoelectric effects, and may be a plate-shaped structure having orientation. As another example, the inorganic material part formed in each of the plurality of first parts contains at least one of lead (Pb), zirconium (Zr), titanium (Ti) zinc (Zn), nickel (Ni), and niobium (Nb). It may include, but is not limited thereto. As another example, the inorganic material part formed in each of the plurality of first parts is a lead zirconate titanate (PZT)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or lead (Pb), zinc A lead zirconate nickel niobate (PZNN)-based material including (Zn), nickel (Ni), and niobium (Nb) may be included, but is not limited thereto. Further, the inorganic material portion that does not contain lead (Pb) CaTiO _3, BaTiO _3, SrTiO, and may include at least one of _3, but is not limited to this.

The organic material portion formed in each of the plurality of second portions may be formed of an organic material or an organic polymer having a flexible characteristic compared to the inorganic material portion that is the first portion. For example, each of the plurality of second portions may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material. For example, each of the plurality of second portions may be expressed as an adhesive portion, an elastic portion, a bending portion, a damping portion, or a flexible portion having flexibility, but is not limited thereto.

The organic material part according to an embodiment may include at least one of an organic piezoelectric material and an organic non-piezoelectric material. The organic material portion including the organic piezoelectric material can improve the overall durability of the first piezoelectric element 751 by absorbing the impact applied to the inorganic material portion (or the first portion), and can provide a certain level of piezoelectric properties. have. The organic piezoelectric material according to an embodiment may be an organic material having electroactive properties. For example, it may include at least one of Polyvinylidene fluoride (PVDF), β-Polyvinylidene fluoride (PVDF), and Polyvinylidene-trifluoroethylene (PVDF-TrFE), but is not limited thereto. The organic material portion including the organic non-piezoelectric material is composed of a curable resin composition and an adhesive including the same, thereby absorbing the impact applied to the inorganic material portion (or the first portion), thereby improving the overall durability of the first piezoelectric element 751. I can. The organic non-piezoelectric material according to an embodiment may include at least one of an epoxy polymer, an acrylic polymer, and a silicone polymer, but is not limited thereto. Accordingly, by configuring the sound generating unit into a plurality of first portions and a plurality of second portions respectively disposed between the plurality of first portions, it is possible to provide a vibration generating module in which piezoelectric properties, rigidity, and flexibility can be improved. I can. Accordingly, by configuring a vibration generating module with improved piezoelectric properties, rigidity, and flexibility of the sound generating unit, it can be applied to a flexible display device, and is advantageous in application to, for example, a vehicle display device. For example, the flexible display device may be a foldable display device, a bandable display device, a wearable display device, a rollable display device, and the like, but is not limited to these examples.

Each of the upper and lower surfaces of the first piezoelectric element 751 according to an embodiment may include electrodes. The electrodes are carbon (C), palladium (Pd), iron (Fe), tin (Sn), aluminum (Al ), nickel (Ni), platinum (Pt), gold (Au), silver (Ag), copper (Cu), titanium (Ti), and one or more of molybdenum (Mo) or an alloy thereof, limited thereto. It does not become. For example, it may be indium tin oxide (ITO), zinc oxide tin (IZO), or molybdenum-titanium (Mo-Ti) alloy, but is not limited thereto.

The first piezoelectric element 751 according to an exemplary embodiment may be disposed on the third rear edge of the display panel 200 via the third connection member 753 (or the third coupling member). The third connecting member 753 may be a double-sided tape or a naturally curable adhesive, but is not limited thereto.

The third sound generating unit 750 according to an embodiment may further include a first protection member 755 disposed on a rear surface of the first piezoelectric element 751. For example, the first protection member 755 may be disposed on the rear surface of the electrode disposed on the rear surface of the first piezoelectric element 751. As another example, the first protection member 755 may be disposed on an upper surface and a lower surface (or rear surface) of the first piezoelectric element 751, respectively.

The first protection member 755 may be formed to have a larger size than the first piezoelectric element 751 and may be disposed on the rear surface of the first piezoelectric element 751. The first protection member 751 may prevent damage to the first piezoelectric element 751 due to an electric shock such as static electricity and/or a physical shock. The first protection member 751 according to an example may include a single-sided insulating tape or an insulating single-sided foam tape having an adhesive layer disposed on the rear surface of the first piezoelectric element 751. For example, the first protection member 751 may be a polyimide (PI) film, a polyethylene terephthalate (PET) insulating tape, or a polyvinyl chloride (PVC) insulating tape, but is not limited thereto.

The fourth sound generating unit 770 may include a second piezoelectric element 771 disposed on a fourth rear edge of the display panel 200 via the fourth connecting member 773. In addition, the fourth sound generating unit 770 may further include a second protection member 775 disposed on the rear surface of the second piezoelectric element 771. The fourth sound generating unit 770 having such a configuration is provided with the third sound generating unit 750 except that the fourth sound generating unit 770 is disposed on the fourth rear edge of the display panel 200 via the fourth connecting member 773. Since they are substantially the same, redundant descriptions thereof will be omitted.

Accordingly, the display device according to another exemplary embodiment of the present specification may have the same effect as the display device illustrated in FIGS. 1 to 9. In addition, the display device according to the exemplary embodiment of the present specification uses the vibration of the display panel 200 in response to the vibration of the coil-type first and second sound generating units 710 and 730 having relatively excellent low sound output characteristics. A second sound generated by vibration of the display panel 200 in response to vibrations of the piezoelectric third and fourth sound generating units 750 and 770 outputting sound in the first sound range and having relatively excellent high sound output characteristics By outputting the sound in the 2 sound range to the front of the display panel 200, sound having a wide sound range may be output, and stereo sound or multi-channel stereophonic sound may be output.

In another example, ?逆Chelmu?? in this specification. Accordingly, the third sound generating unit 750 and the fourth sound generating unit 770 may be equally applied to the display devices illustrated in FIGS. 10 to 12. In addition, the third sound generating unit 750 and the fourth sound generating unit 770 according to the exemplary embodiment of the present specification may be equally applied to the display devices shown in FIGS. 13 and 14, and the balance member is Among the third regions, the third sound generating unit 750 and the fourth sound generating unit 770 may be disposed in the remaining regions except for the regions.

FIG. 17 is a view showing a vehicle according to an exemplary embodiment of the present specification, in which a display device according to an exemplary embodiment of the present specification shown in FIGS. 1 to 16 is applied to a vehicle.

Referring to FIG. 17, a vehicle according to an embodiment of the present specification may include a dashboard (DB), an instrument panel module (IPM), and an infotainment module (ITM).

The dashboard DB includes a first area DA facing the driver's seat, a second area PA facing the passenger seat, and a third area MA between the first area DA and the second area PA. can do.

The instrument panel module IPM may include a first display DIS1 disposed in the first area DA of the dashboard DB.

The first display DIS1 may provide the driver with various information, such as driving-related information such as speed, fuel amount, and engine rotation speed, and vehicle status information when the vehicle is running.

Since the first display DIS1 includes the display devices shown in FIGS. 1 to 16, a redundant description thereof will be omitted. Accordingly, the first display DIS1 may display an image corresponding to driving information of the vehicle provided from the vehicle host system on the display panel. In addition, the first display DIS1 may output a sound generated by vibration of the display panel linked to the vibration of the vibration generating module according to the sound driving signal provided from the vehicle host system toward the driver's seat.

The infotainment module ITM (or infotainment system) may include a second display DIS2 disposed in the third area MA (or center fascia) of the dashboard DB.

The second display DIS2 is connected to a vehicle convenience system and a navigation system such as an audio system, an air conditioning system, and a multimedia system installed inside the vehicle, and is provided from a control icon and a navigation system for controlling the corresponding vehicle convenience system. Navigation information may be displayed, and sound corresponding to an audio signal provided from an audio system and/or a multimedia system may be provided to a vehicle occupant.

Since the second display DIS2 includes the display devices shown in FIGS. 1 to 16, a redundant description thereof will be omitted. Accordingly, the second display DIS2 may display a control icon for controlling the vehicle convenience system and navigation information provided from the navigation system on the display panel. In addition, the second display DIS2 may directly output sound generated by the display panel vibrating according to the vibration of the vibration generating module by the sound signal from the audio system and/or the multimedia system. In addition, the second display DIS2 may perform an interface with the user by recognizing a user's touch through the disposed touch electrode layer of the display panel.

The second display DIS2 may have a length extended toward the second area PA of the dashboard DB. For example, the second display DIS2 may be disposed over the third area MA and the second area PA of the dashboard DB.

Accordingly, the vehicle according to the exemplary embodiment of the present specification includes an instrument panel module (IPM) having a first display DIS1 to which the display device according to the exemplary embodiment of the present specification shown in FIGS. 1 to 16 is applied. The sound generated by the vibration of the (DIS1) can be output to the driver's face and delivered directly to the driver's ears, and through this, a sound substantially close to the original sound can be delivered to the driver.

In addition, in the vehicle according to the exemplary embodiment of the present specification, the display device according to the exemplary embodiment of the present specification illustrated in FIGS. 1 to 16 includes an infotainment module (ITM) having a second display (DIS2). The sound generated by the vibration of DIS2) can be output to the driver and/or vehicle occupant's ears, and through this, a sound substantially close to the original sound can be provided to the driver and/or vehicle occupant.

In addition, the vehicle according to the exemplary embodiment of the present specification may use each of the first display DIS1 of the instrument panel module IPM and the second display DIS2 of the infotainment module ITM as speakers for sound output, Two-channel stereophonic sound may be transmitted to a driver and/or a vehicle occupant through sound generated according to vibrations of each of the first and second displays DIS1 and DIS2.

18 is a view showing a vehicle according to another embodiment of the present specification, which is a modified structure of the infotainment module shown in FIG. 17. Accordingly, in the following description, redundant descriptions of the same components except for the infotainment module and the components related thereto are simplified or omitted.

Referring to FIG. 18, the infotainment module ITM according to the embodiment of the present specification may be installed to be elevating in the third area MA of the dashboard DB. The infotainment module (ITM) is stored (or accommodated) inside the dashboard (DB) according to the vehicle's power off or the vehicle occupant's operation, and is transferred onto the dashboard (DB) according to the vehicle's power on or the vehicle occupant's operation. It can protrude.

The infotainment module ITM according to an embodiment may include a second display DIS2 and a display lifting unit.

Since the second display DIS2 is substantially the same as the second display DIS2 shown in FIG. 17, a redundant description thereof will be omitted.

The display lifting unit may be disposed inside the third area MA of the dashboard DB to support the second display DIS2 so as to be able to move up and down. For example, the display lifting unit may raise the second display DIS2 to protrude onto the dashboard DB when the vehicle is turned on or according to an operation of a vehicle occupant. In addition, the display lifting unit may lower the second display DIS2 according to power off of the vehicle or an operation of a vehicle occupant to be accommodated (or accommodated) inside the dashboard DB.

Accordingly, a vehicle according to another exemplary embodiment of the present specification may have the same effect as the vehicle illustrated in FIG. 17.

19 is a view showing a vehicle according to another embodiment of the present specification, which is a change in the configuration of the infotainment module shown in FIG. 18. Accordingly, in the following description, redundant descriptions of the same components except for the infotainment module and the components related thereto are simplified or omitted.

Referring to FIG. 19, an infotainment module ITM according to an embodiment of the present specification includes a second display DIS2 and a second display DIS2 installed to be elevating in the third area MA of the dashboard DB. It may include a display lifting unit for lifting and lowering, and a third display DIS3 installed in the second area PA of the dashboard DB.

Each of the second display DIS2 and the display lifting unit is substantially the same as each of the second display and the display lifting unit illustrated in FIG. 18, and thus, a redundant description thereof will be omitted.

The third display DIS3 may share the function of the second display DIS2. For example, the third display DIS3 is connected to a vehicle convenience system and a navigation system such as an audio system, an air conditioning system, and a multimedia system installed inside the vehicle, and a control icon and navigation for controlling the corresponding vehicle convenience system. The navigation information provided from the system may be displayed, and sound corresponding to the sound signal provided from the audio system and/or the multimedia system may be provided to the passenger in the passenger seat of the vehicle. Also, the third display DIS3 may transmit and receive image information or sound information through wireless communication with a wireless communication device of a passenger in a passenger seat, and may display the received image information on the display panel.

Since the third display DIS3 includes the display device according to the exemplary embodiment of the present specification shown in FIGS. 1 to 16, a redundant description thereof will be omitted.

The third display DIS3 may have a length extended toward the third area MA of the dashboard DB. For example, the third display DIS3 may be disposed over the second area PA and the third area MA of the dashboard DB.

Each of the first display DIS1 of the instrument panel module IPM and the second and third displays DIS2 and DIS3 of the infotainment module ITM may be used as speakers for sound output in a vehicle.

Accordingly, the vehicle according to another embodiment of the present specification may have the same effect as the vehicle illustrated in FIG. 17, and the first display DIS1 of the instrument panel module IPM and the second and second information of the infotainment module ITM. 3 Each of the displays (DIS2, DIS3) can be used as a speaker for sound output, and the three-channel stereophonic sound is transmitted to the driver and the driver through sound generated according to the vibration of each of the first to third displays (DIS1, DIS2, DIS3). / Or can be passed on to the vehicle occupant.

20 is a view showing a vehicle according to another embodiment of the present specification, which is a change in the configuration of the infotainment module shown in FIG. 17. Accordingly, in the following description, redundant descriptions of the same components except for the infotainment module and the components related thereto are simplified or omitted.

Referring to FIG. 20, an infotainment module (ITM) according to an embodiment of the present specification includes a fourth display (DIS4) disposed on the rear surface of a driver's seat (or driver's seat) DS, and a passenger seat (or passenger seat) (PS) It may further include a fifth display (DIS5) disposed on the rear surface of the.

The fourth display DIS4 may be disposed or embedded in the headrest of the driver's seat DS, and the fifth display DIS5 may be disposed or embedded in the headrest of the passenger seat PS.

Since each of the fourth and fifth displays DIS4 and DIS5 includes the display device according to the exemplary embodiment of the present specification shown in FIGS. 1 to 16, a redundant description thereof will be omitted.

Each of the fourth and fifth displays DIS4 and DIS5 may share a function of the second display DIS2. In addition, each of the fourth and fifth displays DIS4 and DIS5 can transmit and receive image information or sound information through wireless communication with a wireless communication device of a rear seat occupant, and display the received image information on the display panel. have.

Each of the first display DIS1 of the instrument panel module IPM and the second, fourth, and fifth displays DIS2, DIS4, and DIS5 of the infotainment module ITM may be used as speakers for sound output in a vehicle.

Accordingly, the vehicle according to another exemplary embodiment of the present specification may have the same effect as the vehicle shown in FIG. 17, and the first display DIS1 of the instrument panel module IPM and the second and second information of the infotainment module ITM. Each of the 4th and 5th displays (DIS2, DIS4, DIS5) can be used as a speaker for sound output, and according to the vibration of each of the first, second, fourth and fifth displays (DIS1, DIS2, DIS4, DIS5) Through the generated sound, 4 channels of 3D sound may be transmitted to the driver and/or the vehicle occupant.

Additionally, in the vehicle according to another exemplary embodiment of the present specification, the second display DIS2 of the infotainment module ITM is in the third area MA of the dashboard DB, as shown in FIG. 18. It can be installed so that it can be lifted. In addition, the infotainment module ITM may further include a third display DIS3 shown in FIG. 19. In this case, at least one of the first display DIS1 of the instrument panel module IPM and the second to fifth displays DIS2, DIS3, DIS4, and DIS5 of the infotainment module ITM may be used as a speaker for sound output. , A sound generated by vibration of a display panel included in at least one of the first to fifth displays DIS1, DIS2, DIS3, DIS4, and DIS5 may be transmitted to a driver and/or a vehicle occupant.

21 is a view showing a vehicle according to another embodiment of the present specification, which is a speaker additionally configured inside the vehicle shown in any one of FIGS. 17 to 20. Accordingly, in the following description, redundant descriptions of the same components except for separate speakers and related components will be simplified or omitted.

There is a problem in that it is difficult to output a desired sound because the interior of the vehicle has severe reverberation and there are many bends that sound waves collide with. Accordingly, when the display device according to the embodiment of the present specification is configured inside a vehicle or in a vehicle body, there is an advantage in that a speaker disposed in the vehicle can be implemented in a small size, and a vehicle with improved sound can be implemented.

Referring to FIG. 21, a vehicle according to another embodiment of the present specification includes a dashboard speaker (DBS), a left front door speaker (LFS), a right front door speaker (RFS), a left rear door speaker (LRS), and a right rear. At least one of a door speaker (RRS) and a rear decor speaker (RDS) may be further included.

The desiccant board speaker (DBS) is among the first dashboard speaker (DBS1) disposed at the left edge of the dashboard (DB), and the second dashboard speaker (DBS2) disposed at the right edge of the dashboard (DB). It may include at least one. For example, each of the first dashboard speaker (DBS1) and the second dashboard speaker (DBS2) outputs a sound of 150Hz to 20kHz having a mid-range or full-range. It could be a speaker.

The left front door speaker LFS may include at least one of the first to third left front speakers LFS1, LFS2, and LFS3.

The first left front speaker LFS1 may be disposed on a first portion of the left front door adjacent to the dashboard. The second left front speaker LFS2 may be disposed in the middle of the left front door. The third left front speaker LFS3 may be disposed in a second portion of the left front door adjacent to the left rear door. For example, the first left front speaker LFS1 may be a display panel speaker implemented by the display device shown in FIGS. 1 to 16. In this case, the left front speaker can output sound through the vibration of the display panel, and can also serve as a left side mirror that displays an image from a left rear camera disposed on the left side of the vehicle.

The right front door speaker RFS may include at least one of the first to third right front speakers RFS1, RFS2, and RFS3.

The first right front speaker RFS1 may be disposed in a first portion of the right front door adjacent to the dashboard. The second right front speaker RFS2 may be disposed in the middle of the right front door. The third right front speaker RFS3 may be disposed in a second portion of the right front door adjacent to the right rear door. For example, the first right front speaker RFS1 may be a display panel speaker implemented by the display device shown in FIGS. 1 to 16. In this case, the right front speaker may output sound through the vibration of the display panel, and may also serve as a right side mirror that displays an image from a right rear camera disposed on the right side of the vehicle.

Each of the first left front speaker LFS1 and the first right front speaker RFS1 may be a speaker that outputs a sound of 150Hz to 20kHz having a mid-range or full-range. . Sounds output from each of the first left front speaker LFS1 and the first right front speaker RFS1 may be combined and output.

Each of the second left front speaker LFS2 and the second right front speaker RFS2 may be a tweeter or a speaker that outputs sound of 2 kHz to 20 kHz. Sounds output from each of the first and second left front speakers LFS1 and LFS2 and the first and second right front speakers RFS1 and RFS2 may be combined and output.

Each of the third left front speaker (LFS3) and the third right front speaker (RFS3) may be one of a woofer, a mid-woofer, and a sub-woofer, and may be a mid-woofer. It may be a speaker that outputs a sound of 150Hz to 20kHz having a mid-range or full-range. Sounds output from each of the third left front speaker LFS3 and the third right front speaker RFS3 may be combined and output.

The left rear door speaker LRS may include at least one of the first to third left rear speakers LRS1, LRS2, and LRS3.

The first left rear speaker LRS1 may be disposed in a first portion of the left rear door adjacent to the left front door. The second left rear speaker LRS2 may be disposed in the middle of the left rear door. The third left rear speaker LRS3 may be disposed on a second portion of the left rear door adjacent to the rear decor RD.

The right rear door speaker RRS may include at least one of the first to third right rear speakers RRS1, RRS2, and RRS3.

The first right rear speaker RRS1 may be disposed in a first portion of the right rear door adjacent to the right front door. The second right rear speaker RRS2 may be disposed in the middle of the right rear door. The third right rear speaker RRS3 may be disposed on a second portion of the right rear door adjacent to the rear decor RD.

Each of the first left rear speaker LRS1 and the first right rear speaker RRS1 may be a tweeter or a speaker that outputs sound at 2 kHz to 20 kHz. Sounds output from each of the first left rear speaker LRS1 and the first right rear speaker RRS1 may be combined and output.

Each of the second left rear speaker LRS2 and the second right rear speaker RRS2 may be a speaker that outputs sound of 150Hz to 20kHz having a mid-range or full-range. . Sounds output from each of the first and second left rear speakers LRS1 and LRS2 and the first and second right rear speakers RRS1 and RRS2 may be combined and output.

Each of the third left rear speaker LRS3 and the third right rear speaker RRS3 may be one of a woofer, a mid-woofer, and a sub-woofer, and may be a mid-woofer. It may be a speaker that outputs a sound of 150Hz to 20kHz having a mid-range or full-range. Sounds output from each of the third left rear speaker LRS3 and the third right rear speaker RRS3 may be combined and output.

The rear decor speaker (RDS) includes a first rear decor speaker (RDS1) disposed at the left edge of the rear decor (RD), a second rear decor speaker (RDS2) disposed at the right edge of the rear decor (RD), and It may include at least one of the third rear decor speakers RDS3 arranged in the middle of the rear decor RD.

Each of the first rear decor speaker (RDS1) and the second rear decor speaker (RDS2) may be a speaker that outputs a sound of 150Hz to 20kHz having a mid-range or full-range. .

The third rear decor speaker (RDS3) is one of a woofer, a mid-woofer, and a sub-woofer, a speaker that outputs sound from 60 Hz to 150 Hz, and at least one tweeter ( tweeter), or a speaker that outputs sound of 2 kHz to 20 kHz.

Speakers disposed on the left and right sides may be configured symmetrically based on the direction facing the front glass of the vehicle. For example, the frequency of sound output from the speaker placed on the left side of the vehicle may be at least one of 150 Hz to 20 kHz and 2 kHz to 20 kHz, and the frequency output from the sound generating device disposed on the right side of the vehicle is 150 Hz to 20 kHz. And 2 kHz to 20 kHz. In the case of configuring the speaker in this way, the sense of positioning of sound images output from the left and right sides of the vehicle may be improved.

Accordingly, a vehicle according to another exemplary embodiment of the present specification includes at least one of the first display DIS1 of the instrument panel module IPM and the second to fifth displays 710, 730, 750, and 770 of the infotainment module ITM. May be used as a speaker for outputting sound, and output sound generated according to vibration of a display panel included in at least one of the first to fifth displays 610, 710, 730, 750, and 770 Multi-channel surround 3D sound may be provided to a driver and/or a vehicle occupant by outputting sound from at least one speaker disposed on at least one of the (DB), the rear decor (RD), and the left and right doors.

22 is a graph measuring sound pressure level characteristics of a display device according to an exemplary embodiment of the present specification. The sound pressure level of FIG. 22 was measured using Audio Precision's APX525, a sine sweep was applied at 100 to 20 kHz, and the sound pressure was measured at a position 1m away from the display panel. The sine sweep may be a method of sweeping in a short time, but is not limited to this method. In FIG. 22, the horizontal axis represents the frequency (frequency, Hz), and the vertical axis represents the sound pressure level (dB).

As can be seen from FIG. 22, the sound output from the display device according to the exemplary embodiment of the present specification shown in FIGS. 1 to 9 is output at a sound pressure level of 65 dB or more while having a reproduction band of 100 Hz to 20 kHz, for example , It can be seen that sound from 150Hz to 20kHz is output at a sound pressure level of 75dB or more. Accordingly, the display device according to the exemplary embodiment of the present specification may output sound of 100 Hz to 20 kHz through vibration of the display panel without a separate speaker.

Additionally, the sound pressure of the sound decreases in proportion to the square of the distance. In general, considering that the sound pressure level of the voice of the person speaking at a distance of about 0.5m is about 60dB, the sound pressure level at which a listener located 2m away can easily hear the sound output from the display device is about 72dB to 75dB. Must be satisfied. Accordingly, based on the sound pressure level of 74dB, the display device according to the exemplary embodiment of the present specification may provide sound of 150Hz to 20kHz having a sound pressure level of 75dB or more to a listener located about 2m away.

The vibration generating module according to the exemplary embodiment of the present specification may be applied to a vibration generating module disposed in a display device. A display apparatus according to an embodiment of the present specification includes a mobile device, a video phone, a smart watch, a watch phone, a wearable apparatus, a foldable apparatus, and a rollable apparatus. apparatus, bendable apparatus, flexible apparatus, curved apparatus, electronic notebook, e-book, portable multimedia player (PMP), personal digital assistant (PDA), MP3 player, mobile Medical devices, desktop PC, laptop PC, netbook computer, workstation, navigation, vehicle navigation, vehicle display device, vehicle device, television, wallpaper device, It can be applied to a signage device, a game device, a laptop computer, a monitor, a camera, a camcorder, and a home appliance. In addition, the vibration generating module of the present specification may be applied to an organic light emitting lighting device or an inorganic light emitting lighting device. When the vibration generating module is applied to a lighting device, it can serve as a lighting and a speaker.

A display device and a vehicle including the display device according to an exemplary embodiment of the present specification may be described as follows.

A display device according to an exemplary embodiment of the present specification includes a display panel displaying an image, a front member disposed on the front side of the display panel, a driving circuit unit disposed on the rear side of the display panel and connected to the display panel, side surfaces of the display panel and a driving circuit unit. A support frame surrounding a side surface, a first support member supported by the support frame and disposed on a rear surface of the display panel, and a vibration generating module supported by the first support member and vibrating the display panel may be included.

According to some examples of the present specification, a second support member disposed between a rear surface of the display panel and a driving circuit unit is further included, and the driving circuit unit includes at least one flexible circuit film connected to the display panel, and at least one at the rear surface of the display panel. It may include a printed circuit board connected to the flexible circuit film and supported by the second support member.

According to some examples of the present specification, the second support member may include a double-sided tape or a double-sided foam tape.

According to some examples of the present specification, other printed circuit boards disposed in the remaining third areas excluding the first area overlapping the printed circuit board and the second area overlapping the vibration generating module among the rear area of the display panel may be further included. I can.

According to some examples of the present specification, the driving circuit unit may include a printed circuit board disposed on the rear surface of the display panel and connected to the display panel, and the second support member may include a holder disposed on the support frame and supporting the printed circuit board. have.

According to some examples of the present specification, the holder is a second plate disposed on a printed circuit board via an adhesive member and spaced apart from the rear surface of the display panel, and a pair of bridges bent from both sides of the second plate and connected to the support frame. It may include.

According to some examples of the present specification, the second support member may further include a buffer member disposed between the second plate and the rear surface of the display panel.

According to some examples of the present specification, a printed circuit board disposed on the rear surface of the display panel, and a buffer member disposed between the rear surface of the display panel and the printed circuit board may be further included.

According to some examples of the present specification, the first support member includes a first plate disposed on the rear surface of the display panel, a side portion bent from one side of the first plate and supported by the support frame, and a vibration generating module disposed on the first plate. It may include a first forming portion to support.

According to some examples of the present specification, the first support member further includes a second forming portion protruding from an intermediate portion excluding an edge portion of the first plate to the rear surface of the display panel, and a hole formed in the first forming portion, and vibration A portion of the rear surface of the generation module is accommodated in the hole, and the first forming part may be disposed in the second forming part.

According to some examples of the present specification, the vibration generating module is disposed in the first area of the first forming unit, the first sound generating unit vibrating the first rear surface of the display panel, and the first forming unit are disposed in the second area of the display panel. It may include a second sound generating unit vibrating the second rear surface.

According to some examples of the present specification, the vibration generating module is disposed in the first area of the first forming unit and vibrates the first rear surface of the display panel, and the vibration generating module is disposed in the second area of the display panel. A second sound generating unit vibrating a second rear surface, a first piezoelectric vibration unit vibrating a third rear surface of the display panel, and a second piezoelectric vibration unit vibrating a fourth rear surface of the display panel.

A display device according to an exemplary embodiment of the present specification includes a display panel displaying an image, a front member disposed on the front side of the display panel, a first supporting member disposed on the rear side of the display panel, and supported by the first supporting member and supporting the display panel. It may include a vibration generating module for vibrating, and a printed circuit board disposed between the rear surface of the display panel and the first support member.

According to some examples of the present specification, a second support member disposed between the rear surface of the display panel and the printed circuit board may be further included.

According to some examples of the present specification, the second support member may include a double-sided tape or a double-sided foam tape.

According to some examples of the present specification, the balance member may further include a balance member disposed in a third area other than the first area overlapping the printed circuit board and the second area overlapping the vibration generating module among the rear area of the display panel. .

According to some examples of the present specification, the balance member may include another printed circuit board having a size larger than that of the printed circuit board, and an adhesive member disposed between the rear surface of the display panel and the other printed circuit board.

According to some examples of the present specification, a support frame surrounding side surfaces of the display panel and supporting the first support member, and a second support member disposed between the rear surface of the display panel and the printed circuit board may be further included.

According to some examples of the present specification, the second support member includes a holder for supporting the printed circuit board, and the holder includes a second plate disposed on a rear surface of the printed circuit board via an adhesive member, and both sides of the second plate. It may include a pair of bridges bent from and connected to the support frame.

According to some examples of the present specification, the second support member may further include a buffer member disposed between the rear surface of the display panel and the holder.

According to some examples of the present specification, a driving circuit unit disposed on a rear surface of the display panel may be further included, and the support frame may surround a side surface of the driving circuit unit.

According to some examples of the present specification, a buffer member disposed between the rear surface of the display panel and the printed circuit board may be further included.

According to some examples of the present specification, further comprising a support frame surrounding side surfaces of the display panel and disposed between the front member and the first support member, wherein the first support member includes a first plate disposed on a rear surface of the display panel, A side portion bent from one side of the first plate and supported by the support frame, and a first forming portion disposed on the first plate and supporting the vibration generating module.

According to some examples of the present specification, the first support member further includes a hole disposed in the first forming part, and a part of the rear surface of the vibration generating module may be accommodated in the hole of the first forming part.

According to some examples of the present specification, the first support member further includes a second forming portion protruding toward the rear surface of the display panel from a middle portion excluding an edge portion of the first plate, and a hole disposed in the first forming portion, A part of the rear surface of the vibration generating module is accommodated in the hole, and the first forming part may be formed in the second forming part.

According to some examples of the present specification, the vibration generating module is disposed in the first area of the first forming unit and vibrates the first rear surface of the display panel, and the first sound generating unit is disposed in the second area of the first forming unit, and the display panel It may include a second sound generating unit vibrating the second rear surface of the.

According to some examples of the present specification, the vibration generating module is disposed in the first area of the first forming unit and vibrates the first rear surface of the display panel, and the vibration generating module is disposed in the second area of the display panel. A second sound generating unit vibrating the second rear surface, a third sound generating unit vibrating a third rear surface of the display panel, and a fourth sound generating unit vibrating the fourth rear surface of the display panel may be included.

According to some examples of the present specification, a blocking member disposed between the vibration generating module and the display panel may be further included.

According to some examples of the present specification, a connection member connected to the inner surface of the first support member through the vibration generating module may be further included.

A vehicle according to an exemplary embodiment of the present specification includes a dashboard having a first area facing a driver's seat, a second area facing a passenger seat, and a third area between the first area and the second area; An instrument panel module having a first display disposed in a first area of the dashboard; And at least one of a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed at the rear of the driver's seat, and a fifth display disposed at the rear of the passenger seat. Including an infotainment module having, and any one of the first to fifth displays includes a display device, and the display device includes a display panel displaying an image, a front member disposed in front of the display panel, and disposed at the rear of the display panel A driving circuit unit connected to the display panel, a support frame surrounding the side surfaces of the display panel and the side surfaces of the driving circuit unit, a first support member supported by the support frame and disposed on the rear side of the display panel, and a display supported by the first support member It may include a vibration generating module for vibrating the panel.

A vehicle according to an exemplary embodiment of the present specification includes a dashboard having a first area facing a driver's seat, a second area facing a passenger seat, and a third area between the first area and the second area; An instrument panel module having a first display disposed in a first area of the dashboard; And at least one of a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed at the rear of the driver's seat, and a fifth display disposed at the rear of the passenger seat. Including an infotainment module having, and any one of the first to fifth displays includes a display device, and the display device includes a display panel displaying an image, a front member disposed in front of the display panel, and disposed at the rear of the display panel And a first supporting member, a vibration generating module supported by the first supporting member and vibrating the display panel, and a printed circuit board disposed between the rear surface of the display panel and the first supporting member.

According to some examples of the present specification, the display panel may include a touch electrode layer for sensing a user's touch.

According to some examples of the present specification, any one of the first to fifth displays may output sound according to the vibration of the display panel according to the vibration of the vibration generating module.

According to some examples herein, a left front door, a right front door, a left rear door, a right rear door, and a rear decor; And at least one dashboard speaker disposed on the dashboard, at least one left front door speaker disposed on the left front door, at least one right front door speaker disposed on the right front door, and at least one dashboard disposed on the left rear door. At least one of the left rear door speaker, at least one right rear door speaker disposed on the right rear door, and at least one rear decor speaker disposed on the rear decor may be further included.

Features, structures, effects, and the like described in the examples of the present specification described above are included in at least one example of the present specification, and are not necessarily limited to one example. Furthermore, the features, structures, effects, etc. illustrated in at least one example of the present specification may be combined or modified for other examples by a person having ordinary skill in the field to which the present specification belongs. Accordingly, contents related to such combinations and modifications should be interpreted as being included in the scope of the present specification.

The present specification described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical matters of the present specification. It will be obvious to those with knowledge of Therefore, the scope of the present specification is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present specification.

100: front member 200: display panel
300: driving circuit unit 310: flexible circuit film
330: printed circuit board 400: second support member
410: holder 500: support frame
600: first support member 630: forming portion
700: vibration generating module 800: balance member
810: second printed circuit board DB: desi board
DIS1: first display DIS2: second display
DIS3: 3rd display DIS4: 4th display
DIS5: 5th display IPM: instrument panel module
ITM: infotainment module

Claims (32)

A display panel that displays an image;
A front member disposed in front of the display panel;
A driving circuit unit disposed on a rear surface of the display panel and connected to the display panel;
A support frame surrounding side surfaces of the display panel and side surfaces of the driving circuit unit;
A first support member supported by the support frame and disposed on a rear surface of the display panel; And
A display apparatus comprising a vibration generating module supported by the first support member and vibrating the display panel. The method of claim 1,
Further comprising a second support member disposed between the rear surface of the display panel and the driving circuit,
The driving circuit unit,
At least one flexible circuit film connected to the display panel; And
A display device comprising: a printed circuit board connected to the at least one flexible circuit film on a rear surface of the display panel and supported by the second support member. The method of claim 2,
The second support member includes a double-sided tape or a double-sided foam tape. The method of claim 2,
The display device further comprising: a second printed circuit board disposed in a third area other than a first area overlapping the printed circuit board and a second area overlapping the vibration generating module among the rear areas of the display panel. The method of claim 1,
A printed circuit board disposed on a rear surface of the display panel; And
Further comprising a second support member disposed between the rear surface of the display panel and the driving circuit,
The second support member is disposed on the support frame and includes a holder for supporting the printed circuit board. The method of claim 5,
The holder,
A second plate disposed on the printed circuit board via an adhesive member and spaced apart from the rear surface of the display panel; And
A display device comprising a pair of bridges bent from both sides of the second plate and connected to the support frame. The method of claim 6,
The display device further comprises a buffer member disposed between the second plate and the rear surface of the display panel. The method of claim 1,
A printed circuit board disposed on a rear surface of the display panel; And
The display device further comprises a buffer member disposed between the rear surface of the display panel and the printed circuit board. The method of claim 1,
The first support member,
A first plate disposed on a rear surface of the display panel;
A side portion bent from one side of the first plate and supported by the support frame; And
A display device comprising: a first forming unit disposed on the first plate and supporting the vibration generating module. The method of claim 9,
The first support member may include a second forming portion protruding from an intermediate portion excluding an edge portion of the first plate toward a rear surface of the display panel; And
Further comprising a hole formed in the first forming portion,
Part of the rear surface of the vibration generating module is accommodated in the hole,
The first forming part is disposed on the second forming part. The method of claim 9,
The vibration generating module,
A first sound generating unit disposed in a first area of the first forming part and vibrating a first rear surface of the display panel; And
And a second sound generating unit disposed in a second area of the first forming part and vibrating a second rear surface of the display panel. The method of claim 9,
The vibration generating module,
A first sound generating unit disposed in a first area of the first forming part and vibrating a first rear surface of the display panel;
A second sound generating unit disposed in a second area of the first forming unit and vibrating a second rear surface of the display panel;
A first piezoelectric vibration unit vibrating a third rear surface of the display panel; And
A display device comprising a second piezoelectric vibration unit that vibrates the fourth rear surface of the display panel. A display panel that displays an image;
A front member disposed in front of the display panel;
A first support member disposed on a rear surface of the display panel; And
A vibration generating module supported by the first support member and vibrating the display panel; And
And a printed circuit board disposed between the rear surface of the display panel and the first support member. The method of claim 13,
The display device further comprises a second support member disposed between the rear surface of the display panel and the printed circuit board. The method of claim 14,
The second support member includes a double-sided tape or a double-sided foam tape. The method of claim 13,
The display apparatus further comprising a balance member disposed in a third area of the rear area of the display panel except for a first area overlapping the printed circuit board and a second area overlapping the vibration generating module. The method of claim 16,
The balance member,
Another printed circuit board having a larger size than the printed circuit board; And
And an adhesive member disposed between the rear surface of the display panel and the other printed circuit board. The method of claim 13,
A support frame surrounding side surfaces of the display panel, disposed on a rear surface of the front member, and supporting the first support member; And
The display device further comprises a second support member disposed between the rear surface of the display panel and the printed circuit board. The method of claim 18,
The second support member includes a holder for supporting the printed circuit board,
The holder,
A second plate disposed on a rear surface of the printed circuit board via an adhesive member; And
A display device comprising a pair of bridges bent from both sides of the second plate and connected to the support frame. The method of claim 18,
The second support member further comprises a buffer member disposed between the rear surface of the display panel and the holder. The method of claim 18,
Further comprising a driving circuit disposed on the rear surface of the display panel,
The support frame surrounds a side surface of the driving circuit unit. The method of claim 13,
The display device further comprises a buffer member disposed between the rear surface of the display panel and the printed circuit board. The method of claim 13,
Further comprising a support frame surrounding side surfaces of the display panel and disposed between the front member and the first support member,
The first support member,
A first plate disposed on a rear surface of the display panel;
A side portion bent from one side of the first plate and supported by the support frame; And
A display device comprising: a first forming unit disposed on the first plate and supporting the vibration generating module. The method of claim 23,
The first support member further includes a hole disposed in the first forming part,
A portion of the rear surface of the vibration generating module is accommodated in the hole of the first forming unit. The method of claim 23,
The first support member,
A second forming portion protruding toward the rear surface of the display panel from a middle portion excluding an edge portion of the first plate; And
Further comprising a hole disposed in the first forming portion,
Part of the rear surface of the vibration generating module is accommodated in the hole,
The first forming part is disposed on the second forming part. The method of claim 23,
The vibration generating module,
A first sound generating unit disposed in a first area of the first forming part and vibrating a first rear surface of the display panel; And
And a second sound generating unit disposed in a second area of the first forming part and vibrating a second rear surface of the display panel. The method of claim 23,
The vibration generating module,
A first sound generating unit disposed in a first area of the first forming part and vibrating a first rear surface of the display panel;
A second sound generating unit disposed in a second area of the first forming unit and vibrating a second rear surface of the display panel;
A third sound generating unit vibrating a third rear surface of the display panel; And
A display device comprising a fourth sound generating unit vibrating the fourth rear surface of the display panel. The method of claim 13,
The display device further comprises a blocking member disposed between the vibration generating module and the display panel. The method of claim 13,
The display device further comprising a connection member connected to the inner surface of the first support member through the vibration generating module. A dashboard having a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first area and the second area;
An instrument panel module having a first display disposed in a first area of the dashboard; And
A second display disposed on the third area of the dashboard, a third display disposed on the second area of the dashboard, a fourth display disposed on the rear side of the driver's seat, and a fifth display disposed on the rear side of the passenger seat It includes an infotainment module having at least one of,
Any one of the first to fifth displays includes the display device of any one of claims 1 to 29. The method of claim 30,
Any one of the first to fifth displays outputs sound according to the vibration of the display panel according to the vibration of the vibration generating module. The method of claim 30,
Left front door, right front door, left rear door, right rear door, and rear decor; And
At least one dashboard speaker disposed on the dashboard, at least one left front door speaker disposed on the left front door, at least one right front door speaker disposed on the right front door, and disposed on the left rear door The vehicle further comprising at least one of at least one left rear door speaker, at least one right rear door speaker disposed on the right rear door, and at least one rear decor speaker disposed on the rear decor.

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